Critical severity · published Aug 22, 2022
CVE-2020-27836
A flaw was found in cluster-ingress-operator
9.8
CVSS
1.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OC
Openshift Container Platform · Redhat
4.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27836
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27836
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2020-27836
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1905490
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1906267
Patch
https://github.com/openshift/cluster-ingress-operator/pull/507/commits/92c83f281ba5fb6a1d91ecc3beaa4bcf2647a729
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