Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU54491
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21670
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions. A remote authenticated attacker can cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.
MitigationInstall updates from vendor's website.
Red Hat OpenShift Container Platform: 4.6.0 - 4.6.43
jenkins (Red Hat package): 2.289.1.1624020353-1.el8
openshift (Red Hat package): 4.6.0-202012051246.p0.git.94231.efc9027.el7 - 4.6.0-202106110123.p0.git.b00ba52.el8
jenkins-2-plugins (Red Hat package): 4.6.1609853716-1.el8 - 4.6.1623162648-1.el8
cri-o (Red Hat package): 1.19.0-26.rhaos4.6.git8a05a29.el8 - 1.19.2-6.rhaos4.6.git686e6d9.el8
openshift-kuryr (Red Hat package): 4.6.0-202012042155.p0.git.2216.8a6f6a5.el8 - 4.6.0-202106181055.p0.git.7feb5bd.el8
openshift-clients (Red Hat package): 4.6.0-202011260456.p0.git.3798.fcf58ff.el7 - 4.6.0-202106160917.p0.git.99556b6.el8
openshift-ansible (Red Hat package): 4.6.0-202011260456.p0.git.0.e7caea2.el7 - 4.6.0-202103192141.p0.git.0.d1b612b.el7
atomic-openshift-service-idler (Red Hat package): 4.6.0-202012171504.p0.git.15.f4535bc.el8 - 4.6.0-202102031810.p0.git.15.dcab90a.el8
External linkshttp://access.redhat.com/errata/RHBA-2021:3396
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU54492
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21671
CWE-ID:
CWE-384 - Session Fixation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the affected product does not invalidate the existing session on login. A remote attacker can use social engineering techniques to gain administrator access to Jenkins.
MitigationInstall updates from vendor's website.
Red Hat OpenShift Container Platform: 4.6.0 - 4.6.43
jenkins (Red Hat package): 2.289.1.1624020353-1.el8
openshift (Red Hat package): 4.6.0-202012051246.p0.git.94231.efc9027.el7 - 4.6.0-202106110123.p0.git.b00ba52.el8
jenkins-2-plugins (Red Hat package): 4.6.1609853716-1.el8 - 4.6.1623162648-1.el8
cri-o (Red Hat package): 1.19.0-26.rhaos4.6.git8a05a29.el8 - 1.19.2-6.rhaos4.6.git686e6d9.el8
openshift-kuryr (Red Hat package): 4.6.0-202012042155.p0.git.2216.8a6f6a5.el8 - 4.6.0-202106181055.p0.git.7feb5bd.el8
openshift-clients (Red Hat package): 4.6.0-202011260456.p0.git.3798.fcf58ff.el7 - 4.6.0-202106160917.p0.git.99556b6.el8
openshift-ansible (Red Hat package): 4.6.0-202011260456.p0.git.0.e7caea2.el7 - 4.6.0-202103192141.p0.git.0.d1b612b.el7
atomic-openshift-service-idler (Red Hat package): 4.6.0-202012171504.p0.git.15.f4535bc.el8 - 4.6.0-202102031810.p0.git.15.dcab90a.el8
External linkshttp://access.redhat.com/errata/RHBA-2021:3396
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.