VDB-261843 · CVE-2024-33531 · WID-SEC-2025-2424

cdbattags lua-resty-jwt 0.2.3 Enc Header improper authentication

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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in cdbattags lua-resty-jwt 0.2.3. Affected is an unknown function of the component Enc Header Handler. Performing a manipulation with the input A256GCM results in improper authentication. This vulnerability was named CVE-2024-33531. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in cdbattags lua-resty-jwt 0.2.3. It has been classified as critical. This affects an unknown functionality of the component Enc Header Handler. The manipulation with the input value A256GCM leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

cdbattags lua-resty-jwt 0.2.3 allows attackers to bypass all JWT-parsing signature checks by crafting a JWT with an enc header with the value A256GCM.

It is possible to read the advisory at insinuator.net. This vulnerability is uniquely identified as CVE-2024-33531. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

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 CERT Bund (WID-SEC-2025-2424). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

IBM Rational Team Concert

Productinfo

Vendor

cdbattags

Name

lua-resty-jwt

Version

0.2.3

License

open-source

Website

Product: https://github.com/cdbattags/lua-resty-jwt/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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: 🔍

Patch: github.com

Timelineinfo

04/24/2024 🔍
04/24/2024 +0 days 🔍
04/24/2024 +0 days 🔍
10/28/2025 +552 days 🔍

Sourcesinfo

Product: github.com

Advisory: d1558e2afefe868fea1e7e9a4b04ea94ab678a85
Status: Confirmed

CVE: CVE-2024-33531 (🔍)
GCVE (CVE): GCVE-0-2024-33531
GCVE (VulDB): GCVE-100-261843
CERT Bund: WID-SEC-2025-2424 - IBM Rational Team Concert: Mehrere Schwachstellen

Entryinfo

Created: 04/24/2024 07:54
Updated: 10/28/2025 12:42
Changes: 04/24/2024 07:54 (52), 05/29/2024 01:52 (3), 10/28/2025 12:42 (14)
Complete: 🔍
Cache ID: 216::103

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