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    CVE-2012-1823

    sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case.

    Published:May 3, 2012
    Last Modified:Apr 21, 2026
    EPS:May 11, 2012
    EPSS Score:0.94386
    CVSS Score:9.8

    CISA Notification

    Description

    sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Apr 15, 2022
    1610 days ago
    Alert Date
    Mar 25, 2022
    1631 days ago

    Affected Products

    Vendor
    Apple
    Product
    Mac Os X
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Hp
    Product
    Hp-ux
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Php
    Product
    Php
    Vendor
    Redhat
    Product
    Application Stack
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Gluster Storage Server For On-premise
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Mission Critical
    Vendor
    Redhat
    Product
    Storage
    Vendor
    Redhat
    Product
    Storage For Public Cloud
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Suse
    Product
    Linux Enterprise Software Development Kit

    Exploits

    http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/http://www.kb.cert.org/vuls/id/520827http://www.php.net/ChangeLog-5.php#5.4.2https://bugs.php.net/bug.php?id=61910http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/http://www.kb.cert.org/vuls/id/520827http://www.php.net/ChangeLog-5.php#5.4.2https://bugs.php.net/bug.php?id=61910https://www.exploit-db.com/exploits/29290https://github.com/0xl0k1/CVE-2012-1823https://github.com/cyberharsh/PHP_CVE-2012-1823https://github.com/Dmitri131313/CVE-2012-1823-exploit-for-https-user-password-webhttps://github.com/drone789/CVE-2012-1823https://github.com/hackherMind-Pixel/Vulnerable-Lab-Exploitationhttps://github.com/Jimmy01240397/CVE-2012-1823-Analyzehttps://github.com/K3ysTr0K3R/CVE-2012-1823https://github.com/mehedi-hasan-sami98/DVWA-ZAP-PENTESThttps://github.com/nulltrace1336/PHP-CGI-Argument-Injection-Exploithttps://github.com/tanasescualexandrugabriel/Vulnerability-Assessment-and-OSINT-CVE-2012-1823https://github.com/tardummy01/oscp_scripts-1https://github.com/tryj/CVE-2012-1823---PHP-CGI---RCEhttps://github.com/Unix13/metasploitable2https://github.com/waburig/Open-Worldwide-Application-Security-Project-OWASP-https://www.exploit-db.com/exploits/18834https://www.exploit-db.com/exploits/18836https://www.exploit-db.com/exploits/29316

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    References

    http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
    http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
    http://marc.info/?l=bugtraq&m=134012830914727&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0546.html
    http://rhn.redhat.com/errata/RHSA-2012-0547.html
    http://rhn.redhat.com/errata/RHSA-2012-0568.html
    http://rhn.redhat.com/errata/RHSA-2012-0569.html
    http://rhn.redhat.com/errata/RHSA-2012-0570.html
    http://secunia.com/advisories/49014
    http://secunia.com/advisories/49065
    http://secunia.com/advisories/49085
    http://secunia.com/advisories/49087
    http://support.apple.com/kb/HT5501
    http://www.debian.org/security/2012/dsa-2465
    http://www.kb.cert.org/vuls/id/520827
    http://www.kb.cert.org/vuls/id/673343
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:068
    http://www.openwall.com/lists/oss-security/2024/06/07/1
    http://www.php.net/ChangeLog-5.php#5.4.2
    http://www.php.net/archive/2012.php#id2012-05-03-1
    http://www.securitytracker.com/id?1027022
    https://bugs.php.net/bug.php?id=61910
    https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
    http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
    http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
    http://marc.info/?l=bugtraq&m=134012830914727&w=2
    http://rhn.redhat.com/errata/RHSA-2012-0546.html
    http://rhn.redhat.com/errata/RHSA-2012-0547.html
    http://rhn.redhat.com/errata/RHSA-2012-0568.html
    http://rhn.redhat.com/errata/RHSA-2012-0569.html
    http://rhn.redhat.com/errata/RHSA-2012-0570.html
    http://secunia.com/advisories/49014
    http://secunia.com/advisories/49065
    http://secunia.com/advisories/49085
    http://secunia.com/advisories/49087
    http://support.apple.com/kb/HT5501
    http://www.debian.org/security/2012/dsa-2465
    http://www.kb.cert.org/vuls/id/520827
    http://www.kb.cert.org/vuls/id/673343
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:068
    http://www.openwall.com/lists/oss-security/2024/06/07/1
    http://www.php.net/ChangeLog-5.php#5.4.2
    http://www.php.net/archive/2012.php#id2012-05-03-1
    http://www.securitytracker.com/id?1027022
    https://bugs.php.net/bug.php?id=61910
    https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1823

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High