CVE-2019-20901 Open redirect in Jira Server

Medium 6.1 Published Updated

Remote attackers can redirect users to malicious sites via the os_destination parameter, facilitating phishing attacks against Jira Server users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-20901?

CVE-2019-20901 is a medium-severity vulnerability in Atlassian Jira, published on 13 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The login.jsp resource in Jira before version 8.5.2, and from version 8.6.0 before version 8.6.1 allows remote attackers to redirect users to a different website which they may use as part of performing a phishing attack via an open redirect in the os_destination parameter.

Weakness: CWE-601

Which versions are affected by CVE-2019-20901?

It affects 2 products.

Products include Atlassian Jira, Atlassian Jira Server.

How do I fix CVE-2019-20901?

No fix has been published for CVE-2019-20901 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-20901 being exploited?

There is no known exploitation of CVE-2019-20901 in the wild and no public exploit code.

All Atlassian Jira vulnerabilities

Sources

Also known as GHSA-24mj-x7vx-3j5j.

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