CGI::Simple versions 1.281 and earlier for Perl has a HTTP response splitting flaw
概要
CGI::Simple versions 1.281 and earlier for Perl has a HTTP response splitting flaw
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw
This vulnerability is a confirmed HTTP response splitting flaw in CGI::Simple that allows HTTP response header injection, which can be used for reflected XSS or open redirect under certain conditions.
Although some validation exists, it can be bypassed using URL-encoded values, allowing an attacker to inject untrusted content into the response via query parameters.
As a result, an attacker can inject a line break (e.g. %0A) into the parameter value, causing the server to split the HTTP response and inject arbitrary headers or even an HTML/JavaScript body, leading to reflected cross-site scripting (XSS), open redirect or other attacks.
The issue documented in CVE-2010-4410 https://www.cve.org/CVERecord?id=CVE-2010-4410 is related but the fix was incomplete.
Impact
By injecting %0A (newline) into a query string parameter, an attacker can:
-
Break the current HTTP header
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Inject a new header or entire body
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Deliver a script payload that is reflected in the server’s response
That can lead to the following attacks: -
reflected XSS
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open redirect
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cache poisoning
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header manipulation
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2025-40927 libcgi-simple-perl
- Ubuntu UBUNTU-CVE-2025-40927 libcgi-simple-perl
参照URL
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- web cpan.org
- web cve.mitre.org
- web metacpan.org
- web metacpan.org
- web rt.perl.org
- web datatracker.ietf.org
- web owasp.org