""ET EXPLOIT Suspected Exim External Auth Overflow (CVE-2023-42115)""
SID: 2048390
Revision: 1
Class Type: attempted-admin
Metadata: attack_target SMTP_Server, created_at 2023_10_03, cve CVE_2023_42115, deployment Perimeter, deployment SSLDecrypt, performance_impact Significant, confidence Low, signature_severity Major, updated_at 2023_10_03, reviewed_at 2023_10_03
Reference:
-
cve
-
2023-42115
Protocol: tcp
Source Network: any
Source Port: any
Destination Network: $HOME_NET
Destination Port: 25
Flow: established
Contents:
- Value: "auth|20|"
Within:
PCRE: "/^(?:(?:[^A\r\n]+[A])(?:[^A\r\n]+[A])){2,}/R"
Special Options:
-
nocase
-
fast_pattern