VDB-206873 · CVE-2022-38493 · GCVE-0-2022-38493

Rhonabwy up to 1.1.6 JWE Token denial of service

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Rhonabwy up to 1.1.6. The impacted element is an unknown function of the component JWE Token Handler. The manipulation leads to denial of service. This vulnerability is listed as CVE-2022-38493. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Rhonabwy up to 1.1.6. It has been rated as problematic. This issue affects some unknown functionality of the component JWE Token Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Rhonabwy 0.9.99 through 1.1.x before 1.1.7 doesn't check the RSA private key length before RSA-OAEP decryption. This allows attackers to cause a Denial of Service via a crafted JWE (JSON Web Encryption) token.

The weakness was presented 08/21/2022 as dd528b3aabd13863f855a68e76966e4e019fc399. The advisory is shared at github.com. The identification of this vulnerability is CVE-2022-38493 since 08/20/2022. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.1.7 eliminates this vulnerability. Applying the patch dd528b3aabd13863f855a68e76966e4e019fc399 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Rhonabwy

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: Denial of service
CWE: CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Rhonabwy 1.1.7
Patch: dd528b3aabd13863f855a68e76966e4e019fc399

Timelineinfo

08/20/2022 🔍
08/21/2022 +1 days 🔍
08/21/2022 +0 days 🔍
09/24/2022 +34 days 🔍

Sourcesinfo

Advisory: dd528b3aabd13863f855a68e76966e4e019fc399
Status: Confirmed

CVE: CVE-2022-38493 (🔍)
GCVE (CVE): GCVE-0-2022-38493
GCVE (VulDB): GCVE-100-206873

Entryinfo

Created: 08/21/2022 08:14
Updated: 09/24/2022 08:48
Changes: 08/21/2022 08:14 (42), 09/24/2022 08:48 (11)
Complete: 🔍
Cache ID: 216::103