Multiple vulnerabilities in Cloud Foundry cflinuxfs3 and CF Deployment



Published: 2021-03-23
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
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cflinuxfs3
Other software / Other software solutions

CF Deployment
Server applications / Frameworks for developing and running applications

Vendor Cloud Foundry Foundation

Security Advisory

1) Incorrect default permissions

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C] [PCI]

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, 0.201.0, 0.202.0, 0.203.0, 0.204.0, 0.205.0, 0.206.0, 0.207.0, 0.208.0, 0.209.0, 0.210.0, 0.211.0, 0.212.0, 0.213.0, 0.214.0, 0.215.0, 0.216.0, 0.217.0, 0.218.0, 0.219.0, 0.220.0, 0.221.0, 0.222.0, 0.223.0, 0.224.0, 0.225.0, 0.226.0, 0.227.0

CF Deployment: 16.0.0, 16.1.0, 16.2.0, 16.3.0, 16.4.0, 16.5.0, 16.6.0

CPE 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

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C] [PCI]

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, 0.201.0, 0.202.0, 0.203.0, 0.204.0, 0.205.0, 0.206.0, 0.207.0, 0.208.0, 0.209.0, 0.210.0, 0.211.0, 0.212.0, 0.213.0, 0.214.0, 0.215.0, 0.216.0, 0.217.0, 0.218.0, 0.219.0, 0.220.0, 0.221.0, 0.222.0, 0.223.0, 0.224.0, 0.225.0, 0.226.0, 0.227.0

CF Deployment: 16.0.0, 16.1.0, 16.2.0, 16.3.0, 16.4.0, 16.5.0, 16.6.0

CPE 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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