CVE-2021-1359

Cisco Web Security Appliance Privilege Escalation Vulnerability

Description

A vulnerability in the configuration management of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied XML input for the web interface. An attacker could exploit this vulnerability by uploading crafted XML configuration files that contain scripting code to a vulnerable device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. An attacker would need a valid user account with the rights to upload configuration files to exploit this vulnerability.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.93% Top 30%
Vendor Advisory cisco.com
Affected: Cisco Cisco Web Security Appliance (WSA)
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-scr-web-priv-esc-k3HCGJZ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1359?
CVE-2021-1359 has been scored as a medium severity vulnerability.
How to fix CVE-2021-1359?
To fix CVE-2021-1359, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-1359 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1359 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1359?
CVE-2021-1359 affects Cisco Cisco Web Security Appliance (WSA).
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