CVE-2019-11881
A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols.
Does this matter?
Lower severity and a low EPSS score (2.26%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability exists in Rancher before 2.2.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message.
- CVSS 3.0
- 4.7 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
- EPSS
- 2.26% probability · 82th percentile
- CISA KEV
- Not listed
- Affected
- suse/rancher
- Source
- cve@mitre.org
References
- https://github.com/MauroEldritch/VanCleefThird Party Advisory
- https://github.com/rancher/rancher/blob/v2.2.4/pkg/auth/providers/saml/saml_client.go#L282
- https://github.com/rancher/rancher/commit/e59adbc7565251919d84d6e353421104be8da06e
- https://github.com/rancher/rancher/issues/20216Exploit, Issue Tracking, Third Party Advisory
- https://github.com/MauroEldritch/VanCleefThird Party Advisory
- https://github.com/rancher/rancher/issues/20216Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.