Improper Certificate Validation in axel (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-13614
CWE-ID CWE-295
Exploitation vector Network
Public exploit N/A
Vulnerable software
 axel (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Certificate Validation

EUVDB-ID: #VU29246

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-13614

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a man-in-the-Middle (MitM) attack.

The vulnerability exists in in ssl.c when Axel fails to perform hostname verification during TLS connection. A remote attacker can supply a valid SSL certificate from another domain and perform a Man-in-the-Middle attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

axel (Alpine package): 2.16.1-r2 - 2.17.3-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=8ba34495d92731e7e6c6ca71ea7b6e40fb50b250
https://git.alpinelinux.org/aports/commit/?id=a9034d49a917ea95dfc237495c32d9c191f796ae
https://git.alpinelinux.org/aports/commit/?id=da208128cce5803c240119429f12f8841f0c3641
https://git.alpinelinux.org/aports/commit/?id=255f3983c155ab9d02e3e0c3d9b265fa4595b0bf
https://git.alpinelinux.org/aports/commit/?id=416f39b6002046bd899dc905483c64d08e148397


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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