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-2021-3177
CVE-2020-27619
CWE ID CWE-119
CWE-94
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
cflinuxfs3
Other software / Other software solutions

CF Deployment
Server applications / Frameworks for developing and running applications

Vendor Cloud Foundry Foundation

Security Advisory

1) Buffer overflow

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2021-3177

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary within the PyCArg_repr in _ctypes/callproc.c. A remote attacker can pass specially crafted input to the Python applications that accept floating-point numbers as untrusted input, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

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

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-4754-4/

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) Code Injection

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-27619

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to Python executed eval() function on the code, retrieved via HTTP protocol in Lib/test/multibytecodec_support.py CJK codec tests. A remote attacker with ability to intercept network traffic can perform a Man-in-the-Middle (MitM) attack and execute arbitrary Python code on the system.

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

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-4754-4/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###