Vulnerability record

CVE-2019-0211

Apache HTTP Server Privilege Escalation Vulnerability

Severity: HighExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Apache HTTP Server, fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by May 3, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsSource
Apache HTTP ServerApache Software Foundation>= 2.4.17, <= 2.4.38KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2019-0211 scored CVSS 7.8: Apache HTTP Server, Apache HTTP Server Privilege Escalation Vulnerability

    CISA lists this as exploited in the wild. Unpatched HTTP Server systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2019-0211: Apache HTTP Server, Apache HTTP Server Privilege Escalation Vulnerability

    An official fix is now available for Apache HTTP Server. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2019-0211
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html
  • packetstormsecurity.com http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.html
  • packetstormsecurity.com http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.html
  • packetstormsecurity.com http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x-Local-Privilege-Escalation.html
  • apache.org http://www.apache.org/dist/httpd/CHANGES_2.4.39
  • openwall.com http://www.openwall.com/lists/oss-security/2019/04/02/3
  • openwall.com http://www.openwall.com/lists/oss-security/2019/07/26/7
  • securityfocus.com http://www.securityfocus.com/bid/107666
  • access.redhat.com https://access.redhat.com/errata/RHBA-2019:0959
  • access.redhat.com https://access.redhat.com/errata/RHSA-2019:0746
  • access.redhat.com https://access.redhat.com/errata/RHSA-2019:0980
  • access.redhat.com https://access.redhat.com/errata/RHSA-2019:1296
  • access.redhat.com https://access.redhat.com/errata/RHSA-2019:1297
  • access.redhat.com https://access.redhat.com/errata/RHSA-2019:1543
  • httpd.apache.org https://httpd.apache.org/security/vulnerabilities_24.html
  • lists.apache.org https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.a…
  • lists.apache.org https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.a…
  • lists.apache.org https://lists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.communi…
  • lists.apache.org https://lists.apache.org/thread.html/b1613d44ec364c87bb7ee8c5939949f9b061c05c06e0e90098ebf7aa%40%3Cusers.httpd…
  • lists.apache.org https://lists.apache.org/thread.html/b2bdb308dc015e771ba79c0586b2de6fb50caa98b109833f5d4daf28%40%3Cdev.communi…
  • lists.apache.org https://lists.apache.org/thread.html/de881a130bc9cb2f3a9ff220784520556884fb8ea80e69400a45509e%40%3Cdev.communi…
  • lists.apache.org https://lists.apache.org/thread.html/fd110f4ace2d8364c7d9190e1993cde92f79e4eb85576ed9285686ac%40%3Ccvs.httpd.a…
  • lists.apache.org https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.…
  • lists.apache.org https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.…
  • lists.apache.org https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.a…
  • lists.apache.org https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.…
  • lists.apache.org https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.…