Vulnerabilities > CVE-2002-2244 - Race Condition vulnerability in Akfingerd 0.5
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
Akfingerd 0.5 and earlier versions allow local users to cause a denial of service (crash) via a .plan with a symlink to /dev/urandom or other device, then disconnecting while data is being transferred, which causes a SIGPIPE error that Akfingerd cannot handle.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leveraging Race Conditions This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
- Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.
Nessus
| NASL family | Misc. |
| NASL id | FINGER_AKFINGERD.NASL |
| description | The remote finger service appears to vulnerable to a remote attack which can disrupt the service of the finger daemon. This denial of service does not affect other services that may be running on the remote computer, only the finger service can be disrupted. akfingerd version 0.5 or earlier is running on the remote host. This daemon has a history of security problems, make sure that you are running the latest version of akfingerd. Versions 0.5 and earlier of akfingerd are vulnerable to a remote denial of service attack. They are also vulnerable to several local attacks. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 11193 |
| published | 2002-12-12 |
| reporter | This script is Copyright (C) 2002-2018 Andrew Hintz |
| source | https://www.tenable.com/plugins/nessus/11193 |
| title | akfingerd 0.5 Multiple Vulnerabilities |
| code | |