5.3

CVE-2023-20052

Warnung
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Secure Endpoint SwPlatform linux Version < 1.20.2
Cisco ≫ Secure Endpoint SwPlatform macos Version < 1.21.1
Cisco ≫ Secure Endpoint SwPlatform windows Version < 7.5.9
Cisco ≫ Secure Endpoint SwPlatform windows Version >= 8.0.1.21160 < 8.1.5
Clamav ≫ Clamav Version <= 0.103.7
Clamav ≫ Clamav Version >= 0.104.0 <= 0.105.1
Clamav ≫ Clamav Version 1.0.0 Update -
Clamav ≫ Clamav Version 1.0.0 Update rc
Clamav ≫ Clamav Version 1.0.0 Update rc2
Stormshield ≫ Stormshield Network Security Version >= 3.0.0 < 3.7.35
Stormshield ≫ Stormshield Network Security Version >= 3.8.0 < 3.11.23
Stormshield ≫ Stormshield Network Security Version >= 4.3.0 < 4.3.17
Stormshield ≫ Stormshield Network Security Version >= 4.4.0 < 4.6.4
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 7% 0.934
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Cisco PSIRT 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-611 Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

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

The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhN
Vendor Advisory