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ESB-2005.0198 -- 6 iDEFENSE Security Advisories (210 to 215) -- Multiple Vulnerabilities in Computer Associates License Client/Server Products

Date: 03 March 2005

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

       ESB-2005.0198 -- 6 iDEFENSE Security Advisories (210 to 215)
          Multiple Vulnerabilities in Computer Associates License
                          Client/Server Products
                               3 March 2005

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           CA License Software 1.61.8 and prior
Publisher:         iDEFENSE
Operating System:  AIX
                   DEC
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
                   Mac OS X
Impact:            Execute Arbitrary Code/Commands
                   Create Arbitrary Files
Access:            Remote/Unauthenticated
CVE Names:         CAN-2005-0583 CAN-2005-0582 CAN-2005-0581

Original Bulletin: http://www.idefense.com/application/poi/display?id=215
                   http://www.idefense.com/application/poi/display?id=214
                   http://www.idefense.com/application/poi/display?id=213
                   http://www.idefense.com/application/poi/display?id=212
                   http://www.idefense.com/application/poi/display?id=211
                   http://www.idefense.com/application/poi/display?id=210
                   http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Comment: This bulletin contains six iDEFENSE advisories concerning
         vulnerabilities in Computer Associates License software.

- --------------------------BEGIN INCLUDED TEXT--------------------

Computer Associates License Client/Server GCR Checksum Buffer Overflow 

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=215&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Computer 
Associates License Server and License Client can allow attackers to 
execute arbitrary code.

The vulnerability specifically exists due to insufficient bounds 
checking on user-supplied values in GCR requests. The GCR request 
packet format is shown below:

A0 GCR HOSTNAME<DEVBOX>HARDWARE<001122334455>LOCALE<English>
IDENT1<unknown>IDENT2<unknown>IDENT3<unknown>IDENT4<unknown>
OS<Windows_NT 5.0>OLFFILE<0 0 0>SERVER<RMT>VERSION<3 1.54.0>
NETWORK<127.0.0.1 HOSTNAME 255.255.255.0>MACHINE<PC_1586_1_3201>
CHECKSUMS<1 2 3 4 5 6 7 8 9 10 11 12>RMTV<1.00><EOM>

If the second, fifth, eighth, or eleventh field of the Checksums item 
contains a large string, a stack overflow will occur. The format 
specifier for the call to sscanf() is simply:

"%x %s %i %x %s %i %x %s %i %x %s %i"

If the eleventh field is used to overflow the local stack buffer, the 
return address will be overwritten with the address at 64 bytes into 
the overflow string.

Ollydbg output after SEH overwrite in CA License Client:

EAX 00630510
ECX 7C91056D ntdll.7C91056D
EDX 003B0000
EBX 00D4E053 ASCII "GCR"
ESP 0082FC10 ASCII "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
EBP 00D4E050 ASCII "A0"
ESI 0082FCBC ASCII "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
EDI 00D4E057 ASCII "HOSTNAME<DEVBOX>HARDWARE<0011
EIP DEADC0DE

Log data, item 0
Address=DEADC0DE
Message=Access violation when executing [DEADC0DE]

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under 
the privileges of Local System. A GETCONFIG packet exchange which 
discloses the remote operating system version usually proceeds the GCR 
request and increases the likelihood of successful exploitation. The CA 
License Server does not run by default, but is packaged with most 
Computer Associates software distributions. The CA License Client does 
run by default and is packaged with almost all Computer Associates 
software.

IV. DETECTION

iDEFENSE has confirmed that CA License Server 0.1.0.15 and CA License 
Client 0.1.0.15 are vulnerable. 

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports. 

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0581 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems. This is one of several overflows that have been
assigned CAN-2005-0581.

VIII. DISCLOSURE TIMELINE

12/01/2004  Initial vendor notification
12/01/2004  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

An anonymous contributor is credited with discovering this 
vulnerability.

Get paid for vulnerability research 
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert 
electronically. It may not be edited in any way without the express 
written consent of iDEFENSE. If you wish to reprint the whole or any 
part of this alert in any other medium other than electronically, 
please email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate 
at the time of publishing based on currently available information. Use 
of the information constitutes acceptance for use in an AS IS 
condition. There are no warranties with regard to this information. 
Neither the author nor the publisher accepts any liability for any 
direct, indirect, or consequential loss or damage arising from use of, 
or reliance on, this information.

- ------------------------------------------------------------------------------

Computer Associates License Client/Server GCR Network Buffer Overflow 

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=214&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Computer 
Associates License Server and License Client can allow attackers to 
execute arbitrary code.

The vulnerability specifically exists due to insufficient bounds 
checking on user-supplied values in GCR requests. The GCR request 
packet format is shown below:

A0 GCR HOSTNAME<DEVBOX>HARDWARE<001122334455>LOCALE<English> 
IDENT1<unknown>IDENT2<unknown>IDENT3<unknown>IDENT4<unknown> 
OS<Windows_NT 5.0>OLFFILE<0 0 0>SERVER<RMT>VERSION<3 1.54.0> 
NETWORK<127.0.0.1 HOSTNAME 255.255.255.0>MACHINE<PC_1586_1_3201> 
CHECKSUMS<1 2 3 4 5 6 7 8 9 10 11 12>RMTV<1.00><EOM>

If the IP address, hostname, or netmask contain large values, the stack 
overflow can be triggered.

Ollydbg output after SEH overwrite in CA License Server:

EAX 00630210 
ECX 7C91056D ntdll.7C91056D 
EDX 003B0608 
EBX 00E4E053 ASCII "GCR" 
ESP 00E2FC7C ASCII "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
EBP 00E4E050 ASCII "A0" 
ESI 00E2FD28 ASCII "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
EDI 00E4E057 ASCII "HOSTNAME<DEVBOX>HARDWARE<0011 
EIP DEADC0DE

SEH chain of thread 00000DA4, item 0 
Address=00E2FFA4 
SE handler=58585858

Log data, item 0 
Address=DEADC0DE 
Message=Access violation when executing [DEADC0DE]

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under 
the privileges of Local System. A GETCONFIG packet exchange which 
discloses the remote operating system version usually proceeds the GCR 
request and increases the likelihood of successful exploitation. The CA 
License Server does not run by default, but is packaged with most 
Computer Associates software distributions. The CA License Client does 
run by default and is packaged with almost all Computer Associates 
software.

IV. DETECTION

iDEFENSE has confirmed that CA License Server 0.1.0.15 and CA License 
Client 0.1.0.15 are vulnerable. 

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports. 

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0581 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems. This is one of several overflows that have been
assigned CAN-2005-0581.

VIII. DISCLOSURE TIMELINE

12/01/2004  Initial vendor notification
12/01/2004  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

An anonymous contributor is credited with discovering this 
vulnerability.

Get paid for vulnerability research 
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert 
electronically. It may not be edited in any way without the express 
written consent of iDEFENSE. If you wish to reprint the whole or any 
part of this alert in any other medium other than electronically, 
please email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate 
at the time of publishing based on currently available information. Use 
of the information constitutes acceptance for use in an AS IS 
condition. There are no warranties with regard to this information. 
Neither the author nor the publisher accepts any liability for any 
direct, indirect, or consequential loss or damage arising from use of, 
or reliance on, this information.

- ------------------------------------------------------------------------------

Computer Associates License Client/Server GETCONFIG Buffer Overflow 

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=213&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Computer 
Associates License Server and License Client can allow attackers to 
execute arbitrary code.

The vulnerability specifically exists due to insufficient bounds 
checking on user-supplied values in GETCONFIG requests. Under normal 
operation, the License Server will send a GETCONFIG request to 
connecting clients and clients may optionally respond with a similar 
GETCONFIG packet. Both the client and server software fail to check 
bounds on the last parameter of the GETCONFIG packet which results in a 
stack overflow as shown below. 

Ollydbg output after SEH overwrite in CA License Server:

EAX 00000001
ECX 7C90FB71 ntdll.7C90FB71
EDX 0000000D
EBX 00E4E053 ASCII "GETCONFIG"
ESP 00E2FC9C
EBP 00E4E050 ASCII "A0"
ESI 00E2FD18
EDI 00E4E05D ASCII "SELF"
EIP DEADC0DE

Log data, item 0
Address=DEADC0DE
Message=Access violation when executing [DEADC0DE]

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under 
the privileges of Local System. The GETCONFIG packet also contains the 
remote operating system's version information, which increases the 
likelihood of successful exploitation. The CA License Server does not 
run by default, but is packaged with most Computer Associates software 
distributions. The CA License Client does run by default and is 
packaged with almost all Computer Associates software.

IV. DETECTION

iDEFENSE has confirmed that CA License Server 0.1.0.15 and CA License 
Client 0.1.0.15 are vulnerable. 

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports. 

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0581 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems. This is one of several overflows that have been
assigned CAN-2005-0581.

VIII. DISCLOSURE TIMELINE

12/01/2004  Initial vendor notification
12/01/2004  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

An anonymous contributor is credited with discovering this 
vulnerability.

Get paid for vulnerability research 
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert 
electronically. It may not be edited in any way without the express 
written consent of iDEFENSE. If you wish to reprint the whole or any 
part of this alert in any other medium other than electronically, 
please email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate 
at the time of publishing based on currently available information. Use 
of the information constitutes acceptance for use in an AS IS 
condition. There are no warranties with regard to this information. 
Neither the author nor the publisher accepts any liability for any 
direct, indirect, or consequential loss or damage arising from use of, 
or reliance on, this information.

- ------------------------------------------------------------------------------

Computer Associates License Client PUTOLF Directory Traversal

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=212&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a directory traversal vulnerability in Computer 
Associates International Inc. License Client can allow attackers create 
files in arbitrary locations.

The vulnerability specifically exists in the handling of the filename 
used in PUTOLF requests. A PUTOLF request looks something like this:

A0 PUTOLF 1 H A 10 name 2700 Test Data Goes Here<EOM>

By sending a name containing "../../../../" as a prefix, the file is 
created 4 directories below where it ordinarily would. The file created 
has ".olf" added on the end, and has the contents "Test Data Goes Here".

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under the
privileges of Local System (on Windows platforms) or root (on Linux 
platforms). The CA License Client runs by default and is packaged with 
almost all CA software.

IV. DETECTION

iDEFENSE has confirmed that CA License Client 0.1.0.15 is vulnerable. It
is suspected that most CA products are running vulnerable versions of 
the client and/or server.

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports.

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0583 to this issue. This is a candidate for inclusion
in the CVE list (http://cve.mitre.org), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

02/08/2005  Initial vendor notification
02/09/2005  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

This vulnerability was discovered by Greg MacManus, iDEFENSE Labs.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

- ------------------------------------------------------------------------------

Computer Associates License Client PUTOLF Buffer Overflow

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=211&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Computer 
Associates International Inc. License Server can allow attackers to 
execute arbitrary code.

The vulnerability specifically exists in the handling of the filename 
used in PUTOLF requests. A PUTOLF request looks something like this:

A0 PUTOLF 1 H A 10 name 2700 File Contents<EOM>

Using a name over 252 bytes long, it is possible to overwrite the saved 
instruction pointer, allowing execution of arbitrary code.

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under the
privileges of Local System (on Windows platforms) or root (on Linux 
platforms). The CA License Client runs by default and is packaged with 
almost all CA software.

IV. DETECTION

iDEFENSE has confirmed that CA License Client 0.1.0.15 is vulnerable. It

is suspected that most CA products are running vulnerable versions of 
the client and/or server.

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports.

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0582 to this issue. This is a candidate for inclusion
in the CVE list (http://cve.mitre.org), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

02/08/2005  Initial vendor notification
02/09/2005  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

This vulnerability was discovered by Greg MacManus, iDEFENSE Labs.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

- ------------------------------------------------------------------------------

Computer Associates License Client and Server Invalid Command Buffer
Overflow

iDEFENSE Security Advisory 03.02.05
www.idefense.com/application/poi/display?id=210&type=vulnerabilities
March 2, 2005

I. BACKGROUND

The Computer Associates License Client/Server applications provide a 
method for CA products to register their licenses on the network. The 
License Client and Server are distributed with almost all CA software 
distributions. More information about Computer Associates software 
products is available from:

   http://www3.ca.com/Products/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Computer 
Associates International Inc. License Server and License Client can 
allow attackers to execute arbitrary code.

The vulnerability specifically exists because of insufficient bounds 
checking on user-supplied values in requests with an invalid format. 
When a packet containing an overly long string which is not a valid 
command is received, the server uses that string to generate a log 
message without checking if the buffer that the message is being stored
in is large  enough. By sending a string over 2100 bytes long, it is
possible to  overwrite the saved instruction pointer, allowing execution
of arbitrary code.

III. ANALYSIS

Exploitation allows remote attackers to execute arbitrary code under the
privileges of Local System (on Windows platforms) or root (on Linux 
platforms). The CA License Server does not run by default, but is 
packaged with most Computer Associates software distributions. The CA 
License Client does run by default and is packaged with almost all CA 
software.

IV. DETECTION

iDEFENSE has confirmed that CA License Server 0.1.0.15 and CA License 
Client 0.1.0.15 are vulnerable. It is suspected that most CA products 
are running vulnerable versions of the client and/or server.

V. WORKAROUND

Use a firewall to only allow trusted hosts to connect to the Computer 
Associates License Server and Client ports.

VI. VENDOR RESPONSE

A vendor advisory for this issue is available at:

http://supportconnectw.ca.com/public/ca_common_docs/security_notice.asp

Patches for this issue are available at:

http://supportconnectw.ca.com/public/reglic/downloads/licensepatch.asp#a
lp

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-0581 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems. This is one of several overflows that have been
assigned CAN-2005-0581.

VIII. DISCLOSURE TIMELINE

02/08/2005  Initial vendor notification
02/09/2005  Initial vendor response
03/02/2005  Coordinated public disclosure

IX. CREDIT

This vulnerability was discovered by Greg MacManus, iDEFENSE Labs.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

- --------------------------END INCLUDED TEXT--------------------

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
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NOTE: This is only the original release of the security bulletin.  It may
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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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