SB2021070810 - Missing XML Validation in Cisco Web Security Appliance
Published: July 8, 2021
Security Bulletin ID
SB2021070810
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing XML Validation (CVE-ID: CVE-2021-1359)
CWE-ID: CWE-112 - Missing XML Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied XML input for the web interface. A remote authenticated attacker can upload specially crafted XML configuration files to execute arbitrary commands on the underlying operating system and elevate privileges to root.
Remediation
Install update from vendor's website.