Cross-site scripting (XSS) vulnerability in start_form() of CGI.pm allows remote attackers to insert web script via a URL that is fed into the form's action parameter.

A cross-site scripting vulnerability exists in the start_form() function in CGI.pm. This function outputs user-controlled data into the action attribute of a form element without sanitizing it, allowing a remote user to execute arbitrary web script within the context of the generated page. Any program which uses this function in the CGI.pm module may be affected.

Eye on Security found a cross-site scripting vulnerability in the start_form() function in CGI.pm. This vulnerability allows a remote attacker to place a web script in a URL which feeds into a form's action parameter and allows execution by the browser as if it was coming from the site.

Updated Perl packages that fix a security issue in Safe.pm and a cross-site scripting (XSS) vulnerability in CGI.pm are now available.

Perl is a high-level programming language commonly used for system administration utilities and Web programming.

Two security issues have been found in Perl that affect the Perl packages shipped with Red Hat Enterprise Linux :

When safe.pm versions 2.0.7 and earlier are used with Perl 5.8.0 and earlier, it is possible for an attacker to break out of safe compartments within Safe::reval and Safe::rdo by using a redefined @_ variable. This is due to the fact that the redefined @_ variable is not reset between successive calls. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2002-1323 to this issue.

A cross-site scripting vulnerability was discovered in the start_form() function of CGI.pm. The vulnerability allows a remote attacker to insert a Web script via a URL fed into the form's action parameter. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0615 to this issue.

Users of Perl are advised to upgrade to these erratum packages, which contain Perl 5.6.1 with backported security patches correcting these issues.

ID	Name	Product	Family	Severity
15208	Debian DSA-371-1 : perl - XSS	Nessus	Debian Local Security Checks	medium
14066	Mandrake Linux Security Advisory : perl-CGI (MDKSA-2003:084)	Nessus	Mandriva Local Security Checks	medium
12415	RHEL 2.1 : perl (RHSA-2003:257)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2003-0615

medium

Tenable Plugins

medium

medium

medium