Cisco Secure Web Appliance HTTP os command injection

Summaryinfo

A vulnerability labeled as critical has been found in Cisco Secure Web Appliance. This affects an unknown part of the component HTTP Handler. Such manipulation leads to os command injection. This vulnerability is documented as CVE-2022-20871. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco Secure Web Appliance (the affected version unknown). It has been rated as critical. Affected by this issue is an unknown part of the component HTTP Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the web management interface of Cisco AsyncOS for Cisco Secure Web Appliance, formerly Cisco Web Security Appliance (WSA), could allow an authenticated, remote attacker to perform a command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input for the web interface. An attacker could exploit this vulnerability by authenticating to the system and sending a crafted HTTP packet to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. To successfully exploit this vulnerability, an attacker would need at least read-only credentials.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.Attention: Simplifying the Cisco portfolio includes the renaming of security products under one brand: Cisco Secure. For more information, see .

The weakness was released 08/19/2022 as cisco-sa-wsa-prv-esc-8PdRU8t8. The advisory is available at tools.cisco.com. This vulnerability is handled as CVE-2022-20871. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/11/2025). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Secure Web Appliance

License

• commercial

Website

• Vendor: https://www.cisco.com/

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