copyright | disclaimer | privacy | contact  
Australia's Leading Computer Emergency Response Team
 
Search this site

 
On this site

 > HOME
 > About AusCERT
 > Membership
 > Contact Us
 > PKI Services
 > Publications
 > Sec. Bulletins
 > Conferences
 > News & Media
 > Services
 > Web Log
 > Site Map
 > Site Help
 > Member login





 

ESB-2007.0859 -- [Win][UNIX/Linux] -- RealNetworks RealPlayer, RealOne Player, RealPlayer Enterprise - multiple vulnerabilities

Date: 02 November 2007

Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

                    ESB-2007.0859 -- [Win][UNIX/Linux]
            RealNetworks RealPlayer, RealOne Player, RealPlayer
                   Enterprise - multiple vulnerabilities
                              2 November 2007

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

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

Product:              RealPlayer
                      RealOne Player
                      RealPlayer Enterprise
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-2263 CVE-2007-2264 CVE-2007-4599
                      CVE-2007-5080 CVE-2007-5081

Comment: This bulletin contains three (3) Zero Day Initiative security
         announcements. On top of the vulnerabilities in the three Zero
         Day Initiative advisories, the updates provided by RealNetworks
         also fix CVE-2007-5080 and CVE-2007-5081 which both involve the
         execution of arbitrary code through malicious files.

Revision History:     November 2 2007: Added additional products, CVE's 
                                       and comments.
                      November 2 2007: Initial Release

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

ZDI-07-061: RealNetworks RealPlayer SWF Processing Remote Code Execution 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-061.html
October 25, 2007

- -- CVE ID:
CVE-2007-2263

- -- Affected Vendor:
RealNetworks

- -- Affected Products:
RealNetworks RealPlayer version 10.5 

- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since February 15, 2007 by Digital Vaccine protection
filter ID 5070,5071,5072. For further product information on the 
TippingPoint IPS:

    http://www.tippingpoint.com 

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
systems with vulnerable installations of the RealNetworks RealPlayer.
User interaction is required to exploit this vulnerability in that the
target must visit a malicious page or open a malicious file.

The specific flaw exists in RealPlayer's parsing of SWF files. The SWF
rendering DLL RealPlayer uses fails to properly handle malformed record
headers leading to an exploitable overflow. An attacker could exploit
this vulnerability using an ActiveX control
{CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA} and embedding the malicious swf
file in the page or by convincing an affected user to directly open a
SWF file using RealPlayer.

- -- Vendor Response:
RealNetworks has issued an update to correct this vulnerability. More
details can be found at:

http://service.real.com/realplayer/security/10252007_player/en/

- -- Disclosure Timeline:
2007.01.17 - Vulnerability reported to vendor
2007.02.15 - Digital Vaccine released to TippingPoint customers
2007.10.25 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by an anonymous researcher.

- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments,
is being sent by 3Com for the sole use of the intended recipient(s) and
may contain confidential, proprietary and/or privileged information.
Any unauthorized review, use, disclosure and/or distribution by any 
recipient is prohibited.  If you are not the intended recipient, please
delete and/or destroy all copies of this message regardless of form and
any included attachments and notify 3Com immediately by contacting the
sender via reply e-mail or forwarding to 3Com at postmaster@3com.com. 

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

ZDI-07-062: RealNetworks RealPlayer PLS File Memory Corruption 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-062.html
October 25, 2007

- -- CVE ID:
CVE-2007-4599

- -- Affected Vendor:
RealNetworks

- -- Affected Products:
RealNetworks RealPlayer version 10.5 

- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 26, 2007 by Digital Vaccine protection
filter ID 5212. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute code on vulnerable
installations of RealPlayer. User interaction is required in that a user
must open a malicious .pls file or visit a malicious web site.

The specific flaw exists during the parsing of corrupted playlist
files. Malicious corruption causes RealPlayer to call into a static
heap address which can be leveraged by an attacker resulting in
arbitrary code execution under the context of the logged in user.


- -- Vendor Response:
RealNetworks has issued an update to correct this vulnerability. More
details can be found at:

http://service.real.com/realplayer/security/10252007_player/en/

- -- Disclosure Timeline:
2007.03.09 - Vulnerability reported to vendor
2007.04.26 - Digital Vaccine released to TippingPoint customers
2007.10.25 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by an anonymous researcher.

- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments,
is being sent by 3Com for the sole use of the intended recipient(s) and
may contain confidential, proprietary and/or privileged information.
Any unauthorized review, use, disclosure and/or distribution by any 
recipient is prohibited.  If you are not the intended recipient, please
delete and/or destroy all copies of this message regardless of form and
any included attachments and notify 3Com immediately by contacting the
sender via reply e-mail or forwarding to 3Com at postmaster@3com.com. 

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

ZDI-07-063: RealPlayer RA Field Size File Processing Heap Oveflow 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-063.html
October 25, 2007

- -- CVE ID:
CVE-2007-2264

- -- Affected Vendor:
RealNetworks RealPlayer version 10.5 

- -- Affected Products:
RealPlayer 6.x

- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 26, 2007 by Digital Vaccine protection
filter ID 5214. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute code on vulnerable
installations of RealPlayer.  User interaction is required in that a
user must open a malicious .ra/.ram file or visit a malicious web
site.

The specific flaw exists during the parsing of files with improperly
defined size field in the RA header. Specifying a large unsigned value
data can trigger a heap corruption and further result in arbitrary code
execution under the context of the logged in user.

- -- Vendor Response:
RealNetworks has issued an update to correct this vulnerability. More
details can be found at:

   http://service.real.com/realplayer/security/10252007_player/en/

- -- Disclosure Timeline:
2007.02.16 - Vulnerability reported to vendor
2007.04.26 - Digital Vaccine released to TippingPoint customers
2007.10.25 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by an anonymous researcher.

- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments,
is being sent by 3Com for the sole use of the intended recipient(s) and
may contain confidential, proprietary and/or privileged information.
Any unauthorized review, use, disclosure and/or distribution by any 
recipient is prohibited.  If you are not the intended recipient, please
delete and/or destroy all copies of this message regardless of form and
any included attachments and notify 3Com immediately by contacting the
sender via reply e-mail or forwarding to 3Com at postmaster@3com.com.
- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        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.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBRyqtuyh9+71yA2DNAQJ07AQAiUFPULVJzEh/WRNm6caPwL24E5ucAd9B
dgoMFJjnZ8F5J7wj0Zg4JsrHraMdgEyYKZDOMVk/AC/6n/DpDqqjLALpzIuTP6sI
mJKVOS+lTL/r8ywe2qabMSHI7nMZnffWgCgnEDIxVCO28wLTErc0wL+0erfqMsBj
DqA1zr1xt/U=
=yM7m
-----END PGP SIGNATURE-----