CVE-2021-26074

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-26074
Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions from version 1.1.0 before version 2.1.3 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:S/C:N/I:P/A:N

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072 Vendor Advisory
https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986106 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:atlassian:connect_spring_boot:*:*:*:*:*:*:*:*
History

01 Mar 2022, 16:25

Type Values Removed Values Added
CWE CWE-863 CWE-287

23 Feb 2022, 04:15

Type Values Removed Values Added
Summary Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions between 1.1.0 - 2.1.2 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app. Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions from version 1.1.0 before version 2.1.3 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.

23 Apr 2021, 16:39

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.0
v3 : 6.5
CPE cpe:2.3:a:atlassian:connect_spring_boot:*:*:*:*:*:*:*:*
References (N/A) https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986106 - (N/A) https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986106 - Vendor Advisory
References (N/A) https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072 - (N/A) https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072 - Vendor Advisory
CWE CWE-863

16 Apr 2021, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-04-16 03:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-26074

Mitre link : CVE-2021-26074

CVE.ORG link : CVE-2021-26074

JSON object : View

Products Affected

atlassian

  • connect_spring_boot
CWE
CWE-287

Improper Authentication