Home/CVE/On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the D
CVE

CVE-2023-20052

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the D

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.

MEDIUM · CVSS 5.3 EPSS 0.04941
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-611Improper Restriction of XML External Entity Reference
CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
▤

Affected Products & Versions

12
cisco secure endpoint< 1.20.2
cisco secure endpoint< 1.21.1
cisco secure endpoint< 7.5.9
cisco secure endpoint>= 8.0.1.21160 and < 8.1.5
cisco secure endpoint private cloud< 3.6.0
clamav<= 0.103.7
clamav>= 0.104.0 and <= 0.105.1
clamavall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRelevant ClamAV Message
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Mar 2023 · 08:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
⚑

Vendor Advisories

7
suse-csafopenSUSE-SU-2024:12696-1
msrcCVE-2023-20052
usnUSN-5887-1
suse-csafSUSE-SU-2023:0470-1
suse-csafSUSE-SU-2023:0471-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhNVendor Advisory
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