Vulnerability in SUSE Rancher
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. 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to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.020 · change: -0.003
Affected products
- SUSE Rancher — versions 2.1.4
Public proof-of-concept exploits
References
- github.com/MauroEldritch/VanCleef (Third Party Advisory)
- github.com/rancher/rancher/issues/20216 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/rancher/rancher/commit/e59adbc7565251919d84d6e353421104be8da06e
- github.com/rancher/rancher/blob/v2.2.4/pkg/auth/providers/saml/saml_client.go
Frequently asked questions
- What is CVE-2019-11881?
- CVE-2019-11881 is a medium-severity vulnerability in SUSE Rancher. CVSS score: 4.7/10. Published 2019-06-10.
- How severe is CVE-2019-11881?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2019-11881 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.