cisco-sa-20181219-asa-privesc: Cisco Adaptive Security Appliance Software Privilege Escalation Vulnerability
First published: Wed Dec 19 2018(Updated: )
A vulnerability in the authorization subsystem of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, but unprivileged (levels 0 and 1), remote attacker to perform privileged actions by using the web management interface. The vulnerability is due to improper validation of user privileges when using the web management interface. An attacker could exploit this vulnerability by sending specific HTTP requests via HTTPS to an affected device as an unprivileged user. An exploit could allow the attacker to retrieve files (including the running configuration) from the device or to upload and replace software images on the device. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181219-asa-privesc
Credit: Ken Johnson Tenable Inc
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ASA | =9.10<9.10.1.7=9.9<9.9.2.36=9.8<9.8.3.18=9.7<Migrate to 9.8.3.18=9.6<9.6.4.20=9.5<Migrate to 9.6.4.20=9.4<9.4.4.29=Prior to 9.4<Migrate to 9.4.4.29 | 9.10.1.7 9.9.2.36 9.8.3.18 Migrate to 9.8.3.18 9.6.4.20 Migrate to 9.6.4.20 9.4.4.29 Migrate to 9.4.4.29 |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-20181219-asa-privesc?
The severity of cisco-sa-20181219-asa-privesc is categorized as high due to the potential for unauthorized privileged actions.
How do I fix cisco-sa-20181219-asa-privesc?
To fix cisco-sa-20181219-asa-privesc, upgrade to a patched version of Cisco ASA Software, specifically versions 9.10.1.7, 9.9.2.36, 9.8.3.18, 9.6.4.20, or 9.4.4.29.
Who is affected by cisco-sa-20181219-asa-privesc?
cisco-sa-20181219-asa-privesc affects users of Cisco Adaptive Security Appliance (ASA) Software running unpatched versions prior to the specified fixed versions.
What type of attacks can cisco-sa-20181219-asa-privesc enable?
cisco-sa-20181219-asa-privesc can enable authenticated remote attackers to perform privileged actions through the web management interface.
Is there a workaround for cisco-sa-20181219-asa-privesc?
There is no documented workaround for cisco-sa-20181219-asa-privesc; upgrading to a fixed version is the recommended solution.
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