CVE-2018-15798 Pivotal Concourse allows malicious redirect urls on login
Attackers can redirect users to malicious sites via OAuth login, potentially stealing access tokens and compromising user accounts.
- 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
- Available
What is CVE-2018-15798?
CVE-2018-15798 is a high-severity vulnerability in Pivotal Concourse, published on 19 Dec 2018. 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
Pivotal Concourse Release, versions 4.x prior to 4.2.2, login flow allows redirects to untrusted websites. A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user's access token in Concourse.
Weakness: CWE-601
Which versions are affected by CVE-2018-15798?
6 open source packages ship an affected version, including github.com/concourse/concourse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/concourse/concourse Go | All versions | 5.2.8 |
github.com/concourse/concourse Go | All versions | 5.2.8 |
github.com/concourse/concourse Go | From 5.3.0 | 5.5.10 |
github.com/concourse/concourse Go | From 5.3.0 | 5.5.10 |
github.com/concourse/concourse Go | From 5.6.0 | 5.8.1 |
github.com/concourse/concourse Go | From 5.6.0 | 5.8.1 |
Products include Pivotal Software Concourse.
How do I fix CVE-2018-15798?
Upgrade github.com/concourse/concourse to a fixed version for your release line: 5.2.8, 5.5.10 or 5.8.1.
Is CVE-2018-15798 being exploited?
There is no known exploitation of CVE-2018-15798 in the wild and no public exploit code.
Other vulnerabilities in Pivotal Concourse
- CVE-2020-5415 Concourse's GitLab auth allows impersonation
- CVE-2020-5409 Concourse Open Redirect in the /sky/login endpoint
- CVE-2018-1227 Supply chain in Concourse CI: As of 2018-03-13, Pivotal does not believe that any resources or builds of Concourse have been compromised.
- CVE-2019-3792 Concourse 5.0.0 SQL Injection vulnerability
- CVE-2022-31683 Team scope authorization bypass when Post/Put request with :team_name in body, allows HTTP parameter pollution
Sources
Also known as GHSA-9689-rx4v-cqgc.