LightFTP up to 2.2 FTP Request race condition

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in LightFTP up to 2.2. This issue affects some unknown processing of the component FTP Request Handler. Executing a manipulation can lead to race condition. The identification of this vulnerability is CVE-2023-24042. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in LightFTP up to 2.2. This vulnerability affects an unknown part of the component FTP Request Handler. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A race condition in LightFTP through 2.2 allows an attacker to achieve path traversal via a malformed FTP request. A handler thread can use an overwritten context->FileName.

The weakness was shared 01/21/2023 as 25. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-24042 since 01/21/2023. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-28106). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

LightFTP

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2023 🔍
01/21/2023 +0 days 🔍
01/21/2023 +0 days 🔍
10/16/2025 +999 days 🔍

Sourcesinfo

Advisory: 25
Status: Confirmed

CVE: CVE-2023-24042 (🔍)
GCVE (CVE): GCVE-0-2023-24042
GCVE (VulDB): GCVE-100-219124
EUVD: 🔍

Entryinfo

Created: 01/21/2023 13:39
Updated: 10/16/2025 08:38
Changes: 01/21/2023 13:39 (37), 02/18/2023 09:37 (11), 04/02/2025 23:31 (16), 10/16/2025 08:38 (1)
Complete: 🔍
Cache ID: 216::103