NEC SOCKS4 and SOCKS5 username buffer overflow
| socks-username-bo (9485) |  High Risk |
Description:
SOCKS is vulnerable to a buffer overflow caused by improper bounds checking of usernames. By sending an overly long username, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the system to crash.
Note: Virtual Services Gateway and Application Security Gateway by Permeo are not affected by this vulnerability.
Consequences:
Gain Access
Remedy:
No remedy available as of May 1, 2013.
References:
- BugTraq Mailing List, Wed Jul 03 2002 - 06:40:07 CDT: NEC's socks5 (Re: Foundstone Advisory - Buffer Overflow in AnalogX Proxy (fwd)).
- BID-5145: NEC Socks5 User Name Buffer Overflow Vulnerability
- BID-5147: NEC Socks4 User Name Buffer Overflow Vulnerability
- CVE-2002-2368: Multiple buffer overflows in NEC SOCKS5 1.0 r11 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via a long username to (1) the GetString function in proxy.c for the SOCKS5 module or (2) the HandleS4Connection function in proxy.c for the SOCKS4 module.
- OSVDB ID: 55661: NEC SOCKS5 Module proxy.c GetString Function Remote Overflow
- OSVDB ID: 55662: NEC SOCKS4 Module proxy.c HandleS4Connection Function Remote Overflow
Platforms Affected:
- Permeo Technologies SOCKS 5-v1.0 r11 and prior
- Permeo Technologies SOCKS4 4.3 .beta2 and prior
Reported:
Jul 03, 2002
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