Authorisation bypass in the ViewUpgrades resource - CVE-2019-20105

Description

The EditApplinkServlet resource in the Atlassian Application Links plugin before version 5.4.20, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.1, and from version 7.1.0 before version 7.1.3 allows remote attackers who have obtained access to administrator's session to access the EditApplinkServlet resource without needing to re-authenticate to pass "WebSudo" in products that support "WebSudo" through an improper access control vulnerability.

Environment

None

Testing Notes

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Activity

Show:
David Black
March 16, 2020, 6:54 AM

This is an independent assessment and you should evaluate its applicability to your own IT environment.

CVSS v3 score: 6.4 => Medium severity

Exploitability Metrics

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope Metric

Scope

Unchanged

Impact Metrics

Confidentiality

Low

Integrity

High

Availability

Low

https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

Fixed

Assignee

Unassigned

Reporter

David Black

Labels

Add-on Type

None

Team

None

CC

None

Risk factor

None

QA Kickoff Status

None

QA Demo Status

None

Fix versions

Affects versions

Priority

Major