CVE Vulnerability

CVE-2018-1121

procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel's proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng's utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121 Issue Tracking Third Party Advisory
http://seclists.org/oss-sec/2018/q2/122 Exploit Mailing List
https://www.exploit-db.com/exploits/44806/ Exploit Third Party Advisory
http://www.securityfocus.com/bid/104214 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:procps_project:procps:*:*:*:*:*:*:*:*
Information

Published : 2018-06-13 08:29

Updated : 2020-06-30 04:15

NVD link : CVE-2018-1121

Mitre link : CVE-2018-1121

Products Affected
No products.
CWE
CWE-362