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CVE-2018-1079

pcs before version 0.9.164 and 0.10 is vulnerable to a privilege escalation via authorized user...

8.7 HighFix available

CVE-2018-1079 is a high vulnerability (CVSS 8.7) in Redhat Pcs, published April 12, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. Fixed in pcs 0.9.164-1.

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
High

Exploit likelihood

1.06%Up 0.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 8.7

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.

Record
CVE-2018-1079
CVSS 3.0
8.7 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Weakness
CWE-552
Updated
2026-11-02
EUVDEUVD-2018-11731 8.7

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.

Record
EUVD-2018-11731
CVSS 3.0
8.7 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-wxjj-jh24-cx5f 6.5

pcs before version 0.9.164 and 0.10 is vulnerable to a privilege escalation via authorized user...

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.

Record
GHSA-wxjj-jh24-cx5f
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-22
Updated
2026-11-02
NVD 8.7

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.

Record
CVE-2018-1079
CVSS 3.0
8.7 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:P/A:N
Weakness
CWE-552, CWE-22
Updated
2026-11-02
OSV 6.5

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.

Record
CVE-2018-1079
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2018-1079 6.5

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.

Record
DEBIAN-CVE-2018-1079
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2018:1060 8.7

Red Hat Security Advisory: pcs security update

Record
RHSA-2018:1060
CVSS 3.0
8.7 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-1079 6.5

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.

Record
UBUNTU-CVE-2018-1079
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 3.0
8.7 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pcs
Debian:12
before 0.9.164-1
0.9.164-1
pcs
Debian:13
before 0.9.164-1
0.9.164-1
pcs
Debian:14
before 0.9.164-1
0.9.164-1
pcs
Red Hat:enterprise_linux:7::server
before 0:0.9.162-5.el7_5.1
0:0.9.162-5.el7_5.1
pcs-debuginfo
Red Hat:enterprise_linux:7::server
before 0:0.9.162-5.el7_5.1
0:0.9.162-5.el7_5.1
pcs-snmp
Red Hat:enterprise_linux:7::server
before 0:0.9.162-5.el7_5.1
0:0.9.162-5.el7_5.1

History

History
WhenChangedSources
2026-11-03affected
2026-11-03aliases, productsEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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