CVE-2021-26077

Description

Broken Authentication in Atlassian Connect Spring Boot (ACSB) in version 1.1.0 before 2.1.3 and from version 2.1.4 before 2.1.5: 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 1.1.0 before 2.1.3 and versions 2.1.4 before 2.1.5 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.

Risk Information

Base Score

8.8

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.388

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-26077 are fixed in Atlassian-atlassian-connect-spring-boot 2.1.3	Windows
Vulnerabilities CVE-2021-26077 are fixed in Atlassian-atlassian-connect-spring-boot 2.1.5	Windows
Vulnerabilities CVE-2021-26077 are fixed in Atlassian-atlassian-connect-spring-boot for Linux 2.1.3	Linux
Vulnerabilities CVE-2021-26077 are fixed in Atlassian-atlassian-connect-spring-boot for Linux 2.1.5	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234