Race condition in ansible (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1733
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
 ansible (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU29023

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-1733

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition when running a playbook with an unprivileged become user. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ansible (Alpine package): 2.7.16-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=ec2f3b6aa9db9937f43c70b5c3caa8fbf7132575
https://git.alpinelinux.org/aports/commit/?id=6cb3058cad0fdc3fb6f8626e7e77a8bb0042e8b8
https://git.alpinelinux.org/aports/commit/?id=d94bd50429d04befe80c8f8583b81cabdb91b418
https://git.alpinelinux.org/aports/commit/?id=d4da1926ae91c64e47306a32a4627148900ff3c8


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.



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