FDUPES up to 2.1.x Symlink race condition

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in FDUPES up to 2.1.x. Impacted is an unknown function of the component Symlink Handler. The manipulation leads to race condition. This vulnerability is documented as CVE-2022-48682. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in FDUPES up to 2.1.x. This issue affects an unknown code of the component Symlink Handler. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is integrity, and availability. The summary by CVE is:

In deletefiles in FDUPES before 2.2.0, a TOCTOU race condition allows arbitrary file deletion via a symlink.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2022-48682 since 04/26/2024. The exploitation is known to be difficult. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 276128 (TencentOS Server 4: fdupes (TSSA-2024:1072)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.2.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 85680897148f1ac33b55418e00334116e419717f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (276128). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.0
CNA Vector (MITRE): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 276128
Nessus Name: TencentOS Server 4: fdupes (TSSA-2024:1072)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FDUPES 2.2.0
Patch: 85680897148f1ac33b55418e00334116e419717f

Timelineinfo

04/26/2024 🔍
04/26/2024 +0 days 🔍
04/26/2024 +0 days 🔍
11/24/2025 +577 days 🔍

Sourcesinfo

Advisory: 85680897148f1ac33b55418e00334116e419717f
Status: Confirmed

CVE: CVE-2022-48682 (🔍)
GCVE (CVE): GCVE-0-2022-48682
GCVE (VulDB): GCVE-100-262091

Entryinfo

Created: 04/26/2024 08:14
Updated: 11/24/2025 09:54
Changes: 04/26/2024 08:14 (65), 05/30/2024 07:25 (1), 10/28/2024 00:33 (2), 04/03/2025 12:06 (3), 11/24/2025 09:54 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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