Multiple vulnerabilities in Cloud Foundry cflinuxfs3 and CF Deployment



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-24031
CVE-2021-24032
CWE-ID CWE-276
Exploitation vector Network
Public exploit N/A
Vulnerable software
 cflinuxfs3
Other software / Other software solutions

CF Deployment
Server applications / Frameworks for developing and running applications

Vendor Cloud Foundry Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Incorrect default permissions

EUVDB-ID: #VU51639

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-24031

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application within the command-line utility. A remote attacker can view contents of files and directories or modify them.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cflinuxfs3: 0.200.0 - 0.227.0

CF Deployment: 16.0.0 - 16.6.0

CPE2.3 External links

https://www.cloudfoundry.org/blog/usn-4760-1/


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.

2) Incorrect default permissions

EUVDB-ID: #VU51640

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-24032

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application within the command-line utility. A remote attacker can view contents of files and directories or modify them.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cflinuxfs3: 0.200.0 - 0.227.0

CF Deployment: 16.0.0 - 16.6.0

CPE2.3 External links

https://www.cloudfoundry.org/blog/usn-4760-1/


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.



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