Title: Netwin NWAuth Buffer Overflow Vulnerabilities
Severity: HIGH
Description:
The Netwin Authentication module, or NWAuth, is an external authentication module used by several Netwin products.
NWAuth contains numerous boundary condition errors in its handling of arguments passed with certain command line arguments. If an argument of excessive length is passed to the program, a stack overrun occurs and the extraneous data overwrites stack variables. This condition may permit an attacker to take control of the process. This would be accomplished by replacing a function return address with a pointer to supplied shellcode.
It may be possible for an attacker to exploit these buffer overflows to execute arbitrary code through a service that uses NWAuth. This could lead to full system compromise.
Affected Products:
- NetWin DMail 2.5.0 d
- NetWin DMail 2.7.0
- NetWin DMail 2.7.0 q
- NetWin DMail 2.7.0 r
- NetWin DMail 2.8.0 e
- NetWin DMail 2.8.0 f
- NetWin DMail 2.8.0 g
- NetWin DMail 2.8.0 h
- NetWin DMail 2.8.0 i
- NetWin SurgeFTP 1.0.0 b
- NetWin SurgeFTP 2.0.0 B
- NetWin SurgeFTP 2.0.0 a
References:
- NetWin Limited: NetWin Homepage
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