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No exploitation reportedFix available

CVE-2018-1079

No exploitation reported by the sources we read.

  • Published2018-04-12
  • WeaknessCWE-22 · CWE-552

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

pcs before version 0.9.164 and 0.10 is vulnerable to a privilege escalation via authorized user malicious REST call. The REST interface of the pcsd service did not properly sanitize the file name from the /remote/put_file query. If the /etc/booth directory exists, an authenticated attacker with write permissions could create or overwrite arbitrary files with arbitrary data outside of the /etc/booth directory, in the context of the pcsd process.

Timeline

dates in UTC
  1. 2018-04-1217:29CVE publishedNVD

Versions per branch

NVD
Clusterlabs pacemaker command line interface
BranchAffectedFixed in
0.9≤ 0.9.164no fix published
0.10= 0.10no fix published
Redhat enterprise linux
BranchAffectedFixed in
7.0= 7.0no fix published
7.5= 7.5no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • pcsRed Hat:enterprise_linux:7::serverall versions · fixed in 0:0.9.162-5.el7_5.1and 2 other packages
  • pcsDebian:14all versions · fixed in 0.9.164-1
  • pcsDebian:13all versions · fixed in 0.9.164-1
  • pcsDebian:12all versions · fixed in 0.9.164-1

Vendor advisories

  • CVE-2018-1079 Red Hat Product Security20 products fixed

    pcs: Privilege escalation via authorized user malicious REST call

  • RHSA-2018:1060 Red Hat Product Security20 products fixed

    Red Hat Security Advisory: pcs security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2018:1060 · 20 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.08.7known since 2026-10-23
  • NVDCVSS 3.06.5read 2026-10-23
  • NVDCVSS 2.04read 2026-10-23
  • CNAweakness (CWE)CWE-552known since 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score1.1 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Published
2018-04-12
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-wxjj-jh24-cx5f

Frequently asked questions

What is CVE-2018-1079?

pcs before version 0.9.164 and 0.10 is vulnerable to a privilege escalation via authorized user malicious REST call. The REST interface of the pcsd service did not properly sanitize the file name from the /remote/put_file query. If the /etc/booth directory exists, an authenticated attacker with write permissions could create or overwrite arbitrary files with arbitrary data outside of the /etc/booth directory, in the context of the pcsd process.

Is CVE-2018-1079 actively exploited?

Active exploitation of CVE-2018-1079 has not been confirmed. Its EPSS score was 1.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1079?

CVE-2018-1079 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

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