CVE-2018-15798: Pivotal Concourse allows malicious redirect urls on login
First published: Thu Dec 13 2018(Updated: )
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.
Credit: security_alert@emc.com security_alert@emc.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/concourse/concourse | >=5.6.0<5.8.1 | 5.8.1 |
| go/github.com/concourse/concourse | >=5.3.0<5.5.10 | 5.5.10 |
| go/github.com/concourse/concourse | <5.2.8 | 5.2.8 |
| Pivotal Software Concourse | >=4.0.0<4.2.2 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-15798
- https://github.com/concourse/concourse/pull/5350/commits/38cb4cc025e5ed28764b4adc363a0bbf41f3c7cb
- https://github.com/concourse/concourse/blob/release/5.2.x/release-notes/v5.2.8.md
- https://pivotal.io/security/cve-2018-15798
- https://github.com/advisories/GHSA-9689-rx4v-cqgc (Advisory)
Frequently Asked Questions
What is CVE-2018-15798?
CVE-2018-15798 is a vulnerability in Pivotal Concourse Release versions 4.x prior to 4.2.2 that allows redirects to untrusted websites.
How can an attacker exploit CVE-2018-15798?
An attacker can exploit CVE-2018-15798 by convincing a user to click on a link that redirects them to an untrusted website, allowing the attacker to gain access to the user's access token in Concourse.
What is the severity of CVE-2018-15798?
CVE-2018-15798 has a severity rating of 5.4 (High).
Which versions of Pivotal Concourse Release are affected by CVE-2018-15798?
Versions 4.x prior to 4.2.2 are affected by CVE-2018-15798.
How can I fix CVE-2018-15798?
To fix CVE-2018-15798, upgrade to Pivotal Concourse Release version 5.2.8 or higher.
- collector/github-advisory-latest
- alias/GHSA-9689-rx4v-cqgc
- alias/CVE-2018-15798
- collector/github-advisory
- collector/nvd-index
- collector/nvd-cve
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/references
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- package-manager/go
- vendor/pivotal software
- canonical/pivotal software concourse
- version/pivotal software concourse/4.0.0