CVE-2010-4345

CVE-2010-4345 is a high-severity (CVSS 7.8) vulnerability in Exim Exim. CISA added it to the Known Exploited Vulnerabilities catalog on March 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 15, 2022. CISA does not currently list it as used in ransomware campaigns. Exim has 5 vulnerabilities in the KEV catalog, 1 of them linked to ransomware.

Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.

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

• http://bugs.exim.org/show_bug.cgi?id=1044
• http://lists.exim.org/lurker/message/20101209.172233.abcba158.en.html
• http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html
• http://openwall.com/lists/oss-security/2010/12/10/1
• http://secunia.com/advisories/42576
• http://secunia.com/advisories/42930
• http://secunia.com/advisories/43128