A local overflow exists in IBM AIX. The setsenv command fails to validate the x= parameter resulting in a buffer overflow. With a specially crafted request, an attacker can cause execution of arbitrary code as the root user resulting in a loss of confidentiality and/or integrity.
Classification
Location:
Local Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality,
Loss of Integrity
Exploit:
Exploit Public
Disclosure:
OSVDB Verified
Solution
Upgrade AIX using the APAR numbers AIX 4.2: IY10721 and AIX 4.3: IY08812 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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