CVE-2021-3586
The NetworkPolicy resources installed for Maistra do not properly specify which ports may be accessed, allowing access to all ports on these resources from any pod.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in servicemesh-operator. The NetworkPolicy resources installed for Maistra do not properly specify which ports may be accessed, allowing access to all ports on these resources from any pod. 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
- 1.01% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1188
- Affected
- redhat/openshift service mesh · redhat/servicemesh-operator
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3586Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1967738Issue Tracking, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2021-3586Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1967738Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.