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Advisories

Axessh 4.2 Denial of Service via Log File Name

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severity
medium
date
Affecting

  • Axessh <= 4.2

CWE
  • CWE-1282 Assumed-Immutable Data is Stored in Writable Memory
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Victor Mondragón
Description
Axessh 4.2 contains a denial of service vulnerability in the logging configuration that allows local attackers to crash the application by supplying an excessively long string in the log file name field. Attackers can enable session logging, paste a buffer of 500 or more characters into the log file name parameter, and trigger a crash when establishing a telnet connection.

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