VDB-193875 · CVE-2021-23495 · GCVE-0-2021-23495

karma up to 6.3.15 Query Parameter return_url redirect

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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in karma up to 6.3.15 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Query Parameter Handler. Performing a manipulation of the argument return_url results in redirect. This vulnerability is known as CVE-2021-23495. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in karma up to 6.3.15. It has been classified as critical. This affects an unknown part of the component Query Parameter Handler. The manipulation of the argument return_url with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 02/26/2022 as SNYK-JS-KARMA-2396325. It is possible to read the advisory at snyk.io. This vulnerability is uniquely identified as CVE-2021-23495 since 01/08/2021. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

Upgrading to version 6.3.16 eliminates this vulnerability. Applying the patch ff7edbb2ffbcdd69761bece86b7dc1ef0740508d 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.

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

Productinfo

Name

karma

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (Snyk): 🔍

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: Redirect
CWE: CWE-601
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: karma 6.3.16
Patch: ff7edbb2ffbcdd69761bece86b7dc1ef0740508d

Timelineinfo

01/08/2021 🔍
02/26/2022 +414 days 🔍
02/26/2022 +0 days 🔍
02/28/2022 +2 days 🔍

Sourcesinfo

Advisory: SNYK-JS-KARMA-2396325
Status: Confirmed

CVE: CVE-2021-23495 (🔍)
GCVE (CVE): GCVE-0-2021-23495
GCVE (VulDB): GCVE-100-193875

Entryinfo

Created: 02/26/2022 03:54
Updated: 02/28/2022 14:51
Changes: 02/26/2022 03:54 (51), 02/28/2022 14:51 (1)
Complete: 🔍
Cache ID: 216::103