Advisories

Axessh 4.2 Local Stack-based Buffer Overflow via Log File Name

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severity
high
date
Affecting
  • Axessh <= 4.2

CWE
  • CWE-787 Out-of-bounds Write
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Uday Mittal
Description
Axessh 4.2 contains a stack-based buffer overflow vulnerability in the log file name field that allows local attackers to execute arbitrary code by supplying an excessively long filename. Attackers can overflow the buffer at offset 214 bytes to overwrite the instruction pointer and execute shellcode with system privileges.

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