GHSA-vmm6-w4cf-7f3x
Suggest an improvement- Source
- https://github.com/advisories/GHSA-vmm6-w4cf-7f3x
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/01/GHSA-vmm6-w4cf-7f3x/GHSA-vmm6-w4cf-7f3x.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-vmm6-w4cf-7f3x
- Aliases
- Related
- Published
- 2020-01-30T21:21:30Z
- Modified
- 2023-11-08T04:03:51.253304Z
- Severity
-
- 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
- Summary
- Authentication Bypass For Endpoints With Anonymous Access in Opencast
- Details
-
Impact
Using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access.
This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication.
Patches
This problem is fixed in Opencast 7.6 and Opencast 8.1
Workarounds
As a workaround for older, unpatched versions, disabling remember-me cookies in
etc/security/mh_default_org.xmlwill mitigate the problem but will obviously also disable this feature without obvious indication. To deactivate this, remove the following line from the security configuration:<sec:remember-me … />References
For more information
If you have any questions or comments about this advisory:
- Open an issue in opencast/opencast
- For security-relevant information, email us at security@opencast.org
- Database specific
{ "nvd_published_at": null, "github_reviewed_at": "2020-01-30T21:13:52Z", "severity": "CRITICAL", "github_reviewed": true, "cwe_ids": [ "CWE-285" ] }- References
Affected packages
Maven / org.opencastproject:opencast-kernel
Package
- Name
- org.opencastproject:opencast-kernel
- View open source insights on deps.dev
- Purl
- pkg:maven/org.opencastproject/opencast-kernel
Maven / org.opencastproject:opencast-kernel
Package
- Name
- org.opencastproject:opencast-kernel
- View open source insights on deps.dev
- Purl
- pkg:maven/org.opencastproject/opencast-kernel