SMTP: Exim External Authenticator Out-Of-Bounds Write
This signature detects attempts to exploit a known vulnerability against Exim External Authenticator. A successful attack can lead to arbitrary code execution.
Extended Description
Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of a buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17434.
Short Name
SMTP:EXIM-EXT-AUTH-OOB-WRITE-MC
Severity
Major
Recommended
False
Recommended Action
None
Category
SMTP
Keywords
Authenticator CVE-2023-42115 Exim External Out-Of-Bounds Write
Release Date
02/26/2024
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3742
False Positive
Unknown