Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.7
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-21670 CVE-2021-21671 |
| CWE-ID | CWE-264 CWE-384 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
cri-o (Red Hat package) Operating systems & Components / Operating system package or component jenkins (Red Hat package) Operating systems & Components / Operating system package or component Red Hat OpenShift Container Platform Client/Desktop applications / Software for system administration |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Permissions, Privileges, and Access Controls
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.
cri-o (Red Hat package): 1.20.4-4.rhaos4.7.gitf7276ed.el7 - 1.20.4-7.rhaos4.7.git6287500.el8
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.23
jenkins (Red Hat package): before 2.289.2.1628252553-1.el8
External linkshttp://access.redhat.com/errata/RHBA-2021:3033
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.
2) Session Fixation
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.
cri-o (Red Hat package): 1.20.4-4.rhaos4.7.gitf7276ed.el7 - 1.20.4-7.rhaos4.7.git6287500.el8
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.23
jenkins (Red Hat package): before 2.289.2.1628252553-1.el8
External linkshttp://access.redhat.com/errata/RHBA-2021:3033
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.
