Vulnerability Name:

CVE-2018-1079 (CCN-141369)

Assigned:2017-12-04
Published:2018-04-09
Updated:2019-10-09
Summary: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.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
6.0 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
8.1 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.7 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H)
8.0 High (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-22
CWE-552
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2018-1079

Source: CCN
Type: oss-sec Mailing List, Mon, 9 Apr 2018 13:28:08 +0200
pcs: disclosure of CVE-2018-1079 and CVE-2018-1086

Source: MISC
Type: Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1060

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1079

Source: XF
Type: UNKNOWN
clusterlabs-pcs-cve20181079-priv-esc(141369)

Source: CCN
Type: pcs GIT Repository
pcs

Vulnerable Configuration:Configuration 1:
  • cpe:/a:clusterlabs:pacemaker_command_line_interface:*:*:*:*:*:*:*:* (Version <= 0.9.164)
  • OR cpe:/a:clusterlabs:pacemaker_command_line_interface:0.10:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:clusterlabs:pcs:0.9.157:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201810790000000
    V
    		CVE-2018-1079 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-04-12
    oval:com.ubuntu.xenial:def:20181079000
    V
    		CVE-2018-1079 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-04-12
    oval:com.ubuntu.disco:def:201810790000000
    V
    		CVE-2018-1079 on Ubuntu 19.04 (disco) - medium.
    2018-04-12
    oval:com.ubuntu.artful:def:20181079000
    V
    		CVE-2018-1079 on Ubuntu 17.10 (artful) - medium.
    2018-04-12
    oval:com.ubuntu.cosmic:def:201810790000000
    V
    		CVE-2018-1079 on Ubuntu 18.10 (cosmic) - medium.
    2018-04-12
    oval:com.ubuntu.bionic:def:20181079000
    V
    		CVE-2018-1079 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-04-12
    oval:com.ubuntu.bionic:def:201810790000000
    V
    		CVE-2018-1079 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-04-12
    oval:com.ubuntu.cosmic:def:20181079000
    V
    		CVE-2018-1079 on Ubuntu 18.10 (cosmic) - medium.
    2018-04-12
    oval:com.redhat.rhsa:def:20181060
    P
    		RHSA-2018:1060: pcs security update (Important)
    2018-04-10
    BACK
    clusterlabs pacemaker command line interface *
    clusterlabs pacemaker command line interface 0.10
    redhat enterprise linux 7.0
    redhat enterprise linux 7.5
    clusterlabs pcs 0.9.157