Mac OS X pppd contains a flaw that may allow a malicious user to read CHAP or PAP authentication credentials in the pppd process. The issue is due to a format string error in a format specifier function "option_error()". By sending a specially crafted command line argument, a local attacker can read arbitrary data in pppd process, including the user's PAP/CHAP authentication credentials. This flaw may lead to a loss of confidentiality.
Classification
Location:
Local Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality
Exploit:
Exploit Public
Disclosure:
OSVDB Verified
Solution
Currently, there are no known workarounds or upgrades to correct this issue. However, Apple has released a patch (Security Update 2004-02-23) to address this vulnerability.
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