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CVE-2019-0211 KEVPublic exploit High · 7.8 EPSS 65.0%

Apache HTTP Server Privilege Escalation Vulnerability

Apache · HTTP Server

Summary

Apache HTTP Server 2.4 releases 2.4.17 through 2.4.38, when running the event, worker or prefork MPM, allow code running in less-privileged child processes or threads (including scripts run by an in-process scripting interpreter) to manipulate the scoreboard. An attacker who already has local access and low-privilege code execution in those child processes can use this to run arbitrary code with the parent process's privileges, usually root; non-Unix systems are not affected.

Official description · NVD

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.

Breakdown
75.3 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
1/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

First seen exploited 3 years after disclosure. Public exploit code (Exploit-DB) was available the same day.

  1. DisclosedPublic exploit codeExploit-DBday 0
  2. First seen exploitedVulnCheck KEV evidenceAdded to CISA KEVEU database agrees+3 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

1 , grouped by in kill-chain order 1

Privilege EscalationTA0004

MITRE CTID mapping of the KEV entry · how it is exploited

CVE-2019-0211 is a privilege escalation vulnerability in Apache HTTP Server with MPM event, worker, or prefork that allows an attacker to execute code with the privileges of that parent process (usually root).

Detection

0 rules for this CVE · 31 general rules for its techniques

Rules for this CVE

0 that reference CVE-2019-0211 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

References

52 links, grouped by NVD tag (51 duplicates merged)

Mailing List 18

openwall.com/lists/oss-security/2019/07/26/7lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Elists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Elists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.community.apache.org%3Elists.apache.org/thread.html/b1613d44ec364c87bb7ee8c5939949f9b061c05c06e0e90098ebf7aa%40%3Cusers.httpd.apache.org%3Elists.apache.org/thread.html/b2bdb308dc015e771ba79c0586b2de6fb50caa98b109833f5d4daf28%40%3Cdev.community.apache.org%3Elists.apache.org/thread.html/de881a130bc9cb2f3a9ff220784520556884fb8ea80e69400a45509e%40%3Cdev.community.apache.org%3Elists.apache.org/thread.html/fd110f4ace2d8364c7d9190e1993cde92f79e4eb85576ed9285686ac%40%3Ccvs.httpd.apache.org%3E
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