Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0279.2
Cisco Web Security Appliance and Cisco Content Security
Management Appliance HTTP Header Injection Vulnerability
4 February 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Web Security Appliance
Cisco Content Security Management Appliance
Operating System: Cisco
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3117
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20200122-wsa-sma-header-inject
Revision History: February 4 2020: Updated information about WSA vulnerable releases.
January 28 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Web Security Appliance and Cisco Content Security Management Appliance
HTTP Header Injection Vulnerability
Priority: Medium
Advisory ID: cisco-sa-20200122-wsa-sma-header-inject
First Published: 2020 January 22 16:00 GMT
Last Updated: 2020 February 3 16:50 GMT
Version 1.1: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvp16724CSCvq04931
CVE-2020-3117
CWE-113
CVSS Score:
4.7 AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the API Framework of Cisco AsyncOS for Cisco Web
Security Appliance (WSA) and Cisco Content Security Management Appliance
(SMA) could allow an unauthenticated, remote attacker to inject crafted
HTTP headers in the web server's response.
The vulnerability is due to insufficient validation of user input. An
attacker could exploit this vulnerability by persuading a user to access a
crafted URL and receive a malicious HTTP response. A successful exploit
could allow the attacker to inject arbitrary HTTP headers into valid HTTP
responses sent to a user's browser.
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-20200122-wsa-sma-header-inject
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco WSA releases
12.0.1-268 and 11.8.0-382. No release prior to WSA 11.8 is affected by this
vulnerability.
At the time of publication, this vulnerability affected Cisco SMA releases
earlier than Release 13.0.0-187.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect Cisco Email
Security Appliance (ESA).
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o 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.
Fixed Releases
At the time of publication, Cisco SMA releases 13.0.0-187 and later
contained the fix for this vulnerability.
For information about fixed software releases for Cisco WSA, see the
Details section in the bug ID(s) at the top of this advisory.
Exploitation and Public Announcements
o 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
o This vulnerability was found during internal security testing.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20200122-wsa-sma-header-inject
Revision History
o +---------+----------------------+------------+--------+------------------+
| Version | Description | Section | Status | Date |
+---------+----------------------+------------+--------+------------------+
| | Updated information | Vulnerable | | |
| 1.1 | about WSA vulnerable | Products | Final | 2020-February-03 |
| | releases. | | | |
+---------+----------------------+------------+--------+------------------+
| 1.0 | Initial public | - | Final | 2020-January-22 |
| | release. | | | |
+---------+----------------------+------------+--------+------------------+
- --------------------------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:
https://www.auscert.org.au/bulletins/
===========================================================================
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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=BeJA
-----END PGP SIGNATURE-----