ESB-2017.2645 - [Cisco] Cisco IOS XE: Multiple vulnerabilities 2017-10-19

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2645
Cisco IOS XE Software Web Framework Cross-Site Scripting Vulnerability and
          Cisco IOS XE Software Verbose Debug Logging Information
                         Disclosure Vulnerability
                              19 October 2017

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

Product:           Cisco IOS XE
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Cross-site Scripting     -- Remote with User Interaction
                   Access Confidential Data -- Existing Account            
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12289 CVE-2017-12272 

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe1

Comment: This bulletin contains two (2) Cisco Systems security advisories.

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Cisco Security Advisory

Cisco IOS XE Software Web Framework Cross-Site Scripting Vulnerability

Medium

Advisory ID: cisco-sa-20171018-cisco-ios-xe

First Published: 2017 October 18 16:00 GMT

Version 1.0: Final

Workarounds: No workarounds available

Cisco Bug IDs:

CSCvb09516

CVSS Score:

Base 6.1

Base 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

CVE-2017-12272

CWE-79

Summary

A vulnerability in the web framework code of Cisco IOS XE Software could allow
an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) 
attack against a user of the web interface of the affected software.

The vulnerability is due to insufficient input validation of some parameters 
that are passed to the web server of the affected software. An attacker could
exploit this vulnerability by convincing a user of the web interface to access
a malicious link or by intercepting a user request for the affected web 
interface and injecting malicious code into the request. A successful exploit
could allow the attacker to execute arbitrary script code in the context of 
the affected web interface or allow the attacker to access sensitive 
browser-based information.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe

Affected Products

Vulnerable Products

This vulnerability affects Cisco devices that are running a vulnerable release
of Cisco IOS XE Software and have the HTTP Server feature enabled. For 
information about affected software releases, consult the Cisco bug ID(s) at 
the top of this advisory.

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 
vulnerability.

Workarounds

There are no workarounds that address this vulnerability.

Fixed Software

For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.

When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade 
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.

URL

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe

Revision History

Version 	Description 			Section 	Status 		Date

1.0 		Initial public release. 			Final 		2017-October-18

LEGAL DISCLAIMER

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end 
users of Cisco products.

- ---

Cisco Security Advisory

Cisco IOS XE Software Verbose Debug Logging Information Disclosure 
Vulnerability

Medium

Advisory ID: cisco-sa-20171018-cisco-ios-xe1

First Published: 2017 October 18 16:00 GMT

Version 1.0: Final

Workarounds: No workarounds available

Cisco Bug IDs:

CSCvf12081

CVSS Score:

Base 4.4

Base 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:X

CVE-2017-12289

CWE-200

Summary

A vulnerability in conditional, verbose debug logging for the IPsec feature of
Cisco IOS XE Software could allow an authenticated, local attacker to display
sensitive IPsec information in the system log file.

The vulnerability is due to incorrect implementation of IPsec conditional, 
verbose debug logging that causes sensitive information to be written to the 
log file. This information should be restricted. An attacker who has valid 
administrative credentials could exploit this vulnerability by authenticating
to the device and enabling conditional, verbose debug logging for IPsec and 
viewing the log file. An exploit could allow the attacker to access sensitive
information related to the IPsec configuration.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe1

Affected Products

Vulnerable Products

This vulnerability affects all releases of the web user interface of Cisco IOS
XE Software prior to the first fixed release. For information about affected 
software releases, consult the Cisco bug ID(s) at the top of this advisory.

The device is vulnerable only if it is configured for IPsec and conditional, 
verbose debug logging. The following example shows the output of the show 
debug command when this configuration is in use:

router# show debug

IOSXE Conditional Debug Configs:

Feature Type Submode Level

- ------------|-----------------|-----------------------------------|----------

IPSEC controlplane sadb tbar acl uncondition verbose

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 
vulnerability.

Workarounds

There are no workarounds that address this vulnerability.

Fixed Software

For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.

When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade 
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.

Source

This vulnerability was found during internal security testing.

URL

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-cisco-ios-xe1

Revision History

Version 	Description 		Section 	Status 		Date

1.0 		Initial public release. 		Final 		2017-October-18

LEGAL DISCLAIMER

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end 
users of Cisco products.

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

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