A vulnerability was found in AN-HTTPd up to 1.41c (Web Server). It has been classified as critical. Affected is an unknown function of the component SOCKS4 Handler. The manipulation of the argument Username with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in AN HTTPd 1.38 through 1.4.1c allows remote attackers to execute arbitrary code via a SOCKS4 request with a long username.

The weakness was disclosed 12/31/2002 (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2002-1930 since 06/29/2005. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in Java. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (10410) and SecurityFocus (BID 6012†). The entries VDB-276207, VDB-276210, VDB-276219 and VDB-276272 are pretty similar.

Productinfo

Type

• Web Server

Name

• AN-HTTPd

Version

• 1.38
• 1.39
• 1.40
• 1.41
• 1.41b
• 1.41c

CPE 2.3info

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CPE 2.2info

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