CVE-2020-27836
A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in cluster-ingress-operator. A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability..
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.21% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- redhat/openshift container platform
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2020-27836Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1905490Issue Tracking, Permissions Required, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1906267Issue Tracking, Patch, Vendor Advisory
- https://github.com/openshift/cluster-ingress-operator/pull/507/commits/92c83f281ba5fb6a1d91ecc3beaa4bcf2647a729Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2020-27836Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1905490Issue Tracking, Permissions Required, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1906267Issue Tracking, Patch, Vendor Advisory
- https://github.com/openshift/cluster-ingress-operator/pull/507/commits/92c83f281ba5fb6a1d91ecc3beaa4bcf2647a729Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.