Netscape Communicator 4.04/4.7/4.51 on Unix CGI cross site scripting

Summaryinfo

A vulnerability was found in Netscape Communicator 4.04/4.7/4.51 on Unix. It has been rated as critical. The affected element is an unknown function of the component CGI Handler. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-1999-1357. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Netscape Communicator 4.04/4.7/4.51 on Unix (Web Browser). This affects an unknown function of the component CGI Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a "<" sign, and the 0x9b character to a ">" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.

The weakness was shared 10/05/1999 as not defined posting (Bugtraq). The advisory is shared at marc.theaimsgroup.com. This vulnerability is uniquely identified as CVE-1999-1357. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Web Browser

Vendor

• Netscape

Name

• Communicator

Version

• 4.04
• 4.7
• 4.51

License

• free

Website

• Vendor: https://www.netscape.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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