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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
http://www.labf.com
disclosure@vulncheck.com
http://www.labf.com/download/axessh.exe
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https://www.exploit-db.com/exploits/46858
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https://www.exploit-db.com/exploits/46922
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https://www.exploit-db.com/shellcodes/46281
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/axessh-local-stack-based-buffer-overflow-v…
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