Vulnerability Details : CVE-2023-42116
Exim SMTP Challenge Stack-based Buffer Overflow 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 handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.
. Was ZDI-CAN-17515.
Vulnerability category: OverflowExecute code
Products affected by CVE-2023-42116
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Exploit prediction scoring system (EPSS) score for CVE-2023-42116
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-42116
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.1
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
Zero Day Initiative | 2024-05-03 |
CWE ids for CVE-2023-42116
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A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2023-42116
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https://www.zerodayinitiative.com/advisories/ZDI-23-1470/
ZDI-23-1470 | Zero Day Initiative
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