CVEs / CVE-2019-0211
CVE-2019-0211: Apache HTTP Server Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- high 7.8 CVSS 3.1 (NVD)
- EPSS 65% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Apache HTTP Server, 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 code with the privileges of the parent process (usually root) by manipulating the scoreboard.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apache Apache HTTP Server | 2.4.17 to 2.4.38 | — |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 3 May 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2019-0211 on NVD
- CVE-2019-0211 in the CISA KEV catalog
- CVE-2019-0211 on OSV
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html Broken Link, Mailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html Broken Link, Mailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html Broken Link, Third Party Advisory
- http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x-Local-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://www.apache.org/dist/httpd/CHANGES_2.4.39 Broken Link, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2019/04/02/3 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/7 Mailing List
- http://www.securityfocus.com/bid/107666 Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHBA-2019:0959 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0746 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0980 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1296 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1297 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1543 Third Party Advisory
- https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E Mailing List
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E Mailing List
- https://lists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.community.apache.org%3E Mailing List
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.