CVE-2023-29383
CVSS V2 None
CVSS V3 None
Description
In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn (change finger). Although it is not possible to exploit this directly (e.g., adding a new user fails because \n is in the block list), it is possible to misrepresent the /etc/passwd file when viewed. Use of \r manipulations and Unicode characters to work around blocking of the : character make it possible to give the impression that a new user has been added. In other words, an adversary may be able to convince a system administrator to take the system offline (an indirect, social-engineered denial of service) by demonstrating that "cat /etc/passwd" shows a rogue user account.
Overview
- CVE ID
- CVE-2023-29383
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2023-04-14T22:15:07
- Last Modified Date
- 2023-04-24T18:05:30
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:shadow_project:shadow:4.13:*:*:*:*:*:*:* | 1 | OR |
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-29383 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29383 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2023-04-17 04:45:57 | Added to TrackCVE | |||
| 2023-04-20 14:01:08 | Awaiting Analysis | Undergoing Analysis | Vulnerability Status | updated |
| 2023-04-20 20:01:41 | Undergoing Analysis | Awaiting Analysis | Vulnerability Status | updated |
| 2023-04-21 11:00:41 | Awaiting Analysis | Undergoing Analysis | Vulnerability Status | updated |
| 2023-04-24 19:00:53 | 2023-04-24T18:05:30 | CVE Modified Date | updated | |
| 2023-04-24 19:00:53 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |
| 2023-04-24 19:00:54 | Weakness Enumeration | new | ||
| 2023-04-24 19:00:57 | CPE Information | updated |