CVE-2023-42115

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.

CVSS v3.0

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

9.96% chance of exploitation in the next 30 days, 95th percentile

Published

2024-05-03

Updated

2024-09-20

Proof-of-concept exploits (2)

• isotaka134/cve-2023-421150★ · 2024-09-02
• kirinse/cve-2023-421159★ · 2024-09-02

References

• CVE Record
• NVD entry

Related

• CVE-2023-4209
• CVE-2023-42134
• CVE-2023-4203
• CVE-2023-42135
• CVE-2023-4202
• CVE-2023-42136