CVE-2018-1121
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
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.
Overview
- CVE ID
- CVE-2018-1121
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-06-13T20:29:00
- Last Modified Date
- 2020-06-30T16:15:14
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:procps_project:procps:*:*:*:*:*:*:*:* | 1 | OR | 3.3.15 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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 Third Party Advisory |
| https://www.exploit-db.com/exploits/44806/ | Exploit Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/104214 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-1121 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1121 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:41:45 | Added to TrackCVE | |||
| 2022-12-03 08:02:04 | 2018-06-13T20:29Z | 2018-06-13T20:29:00 | CVE Published Date | updated |
| 2022-12-03 08:02:04 | 2020-06-30T16:15:14 | CVE Modified Date | updated | |
| 2022-12-03 08:02:04 | Modified | Vulnerability Status | updated |