Amazon Linux AMI update for vim

1) OS Command Injection

EUVDB-ID: #VU30281

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-20807

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a local authenticated user to read and manipulate data.

In Vim before 8.1.0881, users can circumvent the rvim restricted mode and execute arbitrary OS commands via scripting interfaces (e.g., Python, Ruby, or Lua).

Mitigation

Update the affected packages:

i686:
    vim-enhanced-8.0.0503-1.47.amzn1.i686
    vim-common-8.0.0503-1.47.amzn1.i686
    vim-minimal-8.0.0503-1.47.amzn1.i686
    vim-debuginfo-8.0.0503-1.47.amzn1.i686
    vim-filesystem-8.0.0503-1.47.amzn1.i686

src:
    vim-8.0.0503-1.47.amzn1.src

x86_64:
    vim-minimal-8.0.0503-1.47.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.47.amzn1.x86_64
    vim-filesystem-8.0.0503-1.47.amzn1.x86_64
    vim-common-8.0.0503-1.47.amzn1.x86_64
    vim-enhanced-8.0.0503-1.47.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*

External links

https://alas.aws.amazon.com/ALAS-2021-1474.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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