Cisco Web Security Appliance Privilege Escalation Vulnerability (Cisco Cisco Web Security Appliance (WSA))
At a glance
- Source
- NVD
- EPSS
- EPSS 1.88 % · percentile 79 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-112 — Missing XML Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | cisco |
| CVSS 3.1 | MEDIUM 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-6826
- GCVE · GCVE-0-2021-1359
CERT-FR advisories
- CERTFR-2021-AVI-508 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:web_security_appliance:11.8.0-429:*:*:*:*:*:*:*cpe:2.3:a:cisco:web_security_appliance:11.8.0-453:*:*:*:*:*:*:*cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*≥ 11.8.0 < 12.0.3-005cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*≥ 12.5.0 < 12.5.2
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Web Security Appliance (WSA) | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |