Zero-day Vulnerability Database

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Zero-day vulnerabilities discovered: 1

PHP inlcuding in Roundcube Webmail
CVE-2013-1904

PHP including

The vulnerability allows a remote attacker to include arbitrary files on the target system.

The weakness exists due to improper sanitization of user-supplied data within "steps/mail/sendmail.inc" script when parsing "generic_message_footer" HTTP parameter passed to "/index.php" script. A remote attacker can send a specially crafted HTTP request to the "index.php" script, include and execute arbitrary PHP script on the affected server.

Successful exploitation of the vulnerability may lead to system compromise.

Note: the vulnerability was being actively exploited.

Software: Roundcube

Known/fameous malware:

Exploit-FHV!CVE2013-1493 (McAfee)
Exp/20131493-G (Sophos)
Exp/20131493-A (Sophos)
Exploit.Java.CVE-2013-1493.gen (Kaspersky)
Java/CVE_2013_1493.NT!exploit

Links:

https://sourceforge.net/p/roundcubemail/news/2013/03/security-updates-086-and-073/ 
http://lists.roundcube.net/pipermail/dev/2013-March/022328.html
https://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-1904.html

Full report >

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.