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Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2018-19518

HIGH 7.5 CVSS 3.1
Published
November 25, 2018
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-88
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

University of Washington IMAP Toolkit 2007f on UNIX, as used in imap_open() in PHP and other products, launches an rsh command (by means of the imap_rimap function in c-client/imap4r1.c and the tcp_aopen function in osdep/unix/tcp_unix.c) without preventing argument injection, which might allow remote attackers to execute arbitrary OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics. For example, if rsh is a link to ssh (as seen on Debian and Ubuntu systems), then the attack can use an IMAP server name containing a "-oProxyCommand" argument.

Affected products and versions

  • PHP — From 5.6.0 (including) to 5.6.38 (including)
  • PHP — From 7.0.0 (including) to 7.0.32 (including)
  • PHP — From 7.1.0 (including) to 7.1.24 (including)
  • PHP — From 7.2.0 (including) to 7.2.12 (including)

References

  • www.securityfocus.com http://www.securityfocus.com/bid/106018 Broken Link
  • www.securitytracker.com http://www.securitytracker.com/id/1042157 Broken Link
  • antichat.com https://antichat.com/threads/463395/#post-4254681 Exploit, Third Party Advisory
  • bugs.debian.org https://bugs.debian.org/913775 Mailing List, Third Party Advisory
  • bugs.debian.org https://bugs.debian.org/913835 Mailing List, Third Party Advisory
  • bugs.debian.org https://bugs.debian.org/913836 Mailing List, Third Party Advisory
  • bugs.php.net https://bugs.php.net/bug.php?id=76428 Exploit, Mailing List, Vendor Advisory
  • bugs.php.net https://bugs.php.net/bug.php?id=77153 Exploit, Mailing List, Vendor Advisory
  • bugs.php.net https://bugs.php.net/bug.php?id=77160 Vendor Advisory
  • git.php.net https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=e5bfea64c81ae34816479bb05d17cdffe45adddb
  • github.com https://github.com/Bo0oM/PHP_imap_open_exploit/blob/master/exploit.php Exploit, Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html Mailing List, Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2019/03/msg00001.html Mailing List, Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2021/12/msg00031.html Mailing List, Third Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202003-57 Third Party Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20181221-0004/ Third Party Advisory
  • usn.ubuntu.com https://usn.ubuntu.com/4160-1/ Third Party Advisory
  • www.debian.org https://www.debian.org/security/2018/dsa-4353 Third Party Advisory
  • www.exploit-db.com https://www.exploit-db.com/exploits/45914/ Exploit, Third Party Advisory, VDB Entry
  • www.openwall.com https://www.openwall.com/lists/oss-security/2018/11/22/3 Exploit, Mailing List, Third Party Advisory
  • nvd.nist.gov Official NVD record