CVE-2023-42115

May 3, 2024, 12:49 p.m.

Tags

CWE-787
zdi-disclosures@trendmicro.com
2024-05-03
CVE-2023-42115

CVSS Score

9.8 / 10

Product(s) Impacted

Exim

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.

Weaknesses

Date

Published: May 3, 2024, 3:15 a.m.

Last Modified: May 3, 2024, 12:49 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

zdi-disclosures@trendmicro.com

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score
9.8
Exploitability Score
Impact Score
Base Severity
CRITICAL
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

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

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1469/
zdi-disclosures@trendmicro.com