CVE-2018-1121
procps-ng, procps is vulnerable to a process hiding through race condition.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Procps-ng - Multiple Vulnerabilities2018-05-30 · local · linux
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Procps Project | Procps | through 3.3.15 |
Weakness classification
References
- NVD record
- CVE.org record
- http://seclists.org/oss-sec/2018/q2/122
- http://www.securityfocus.com/bid/104214
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
- https://www.exploit-db.com/exploits/44806/
- https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt
- http://seclists.org/oss-sec/2018/q2/122
- http://www.securityfocus.com/bid/104214
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121
- https://www.exploit-db.com/exploits/44806/
- https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt