CVE-2021-1359 Cisco Web Security Appliance Privilege Escalation Vulnerability

2021-07-0818:35:10

CWE-112

cisco

www.cve.org

cisco

web security

privilege escalation

vulnerability

configuration management

command injection

xml input

remote attacker

root privileges

command execution

operating system

user account

configuration files

CVSS3

6.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

AI Score

9.2

Confidence

High

EPSS

0.001

Percentile

42.9%

JSON

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.

CNA Affected

[
  {
    "product": "Cisco Web Security Appliance (WSA)",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]