XXE in Cisco Secure Endpoint
CVE-2023-20052
On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the DMG file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process.
Vulnerability class: XXE (XML External Entity)
EPSS: 0.070 (93.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Cisco Secure Endpoint — versions 6.0.9, 6.0.7, 6.1.5
- Cisco Secure_endpoint
- Cisco Secure_endpoint_private_cloud
- Clamav — versions 1.0.0
- Stormshield Stormshield_network_security
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20052?
- CVE-2023-20052 is a medium-severity vulnerability in Cisco Secure Endpoint, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.3/10. Published 2023-03-01.
- How severe is CVE-2023-20052?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-20052 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.