Path traversal in wget (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-4877
CWE-ID CWE-22
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 wget (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Path traversal

EUVDB-ID: #VU32477

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2014-4877

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Absolute path traversal vulnerability in GNU Wget before 1.16, when recursion is enabled, allows remote FTP servers to write to arbitrary files, and consequently execute arbitrary code, via a LIST response that references the same filename within two entries, one of which indicates that the filename is for a symlink.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wget (Alpine package): 1.12-r0 - 1.15-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=167f0dcc09a294a5cdd7f29cc405c019eacb5a88
https://git.alpinelinux.org/aports/commit/?id=1e8ccfea948d9739032536c9e1f4703eb174c865
https://git.alpinelinux.org/aports/commit/?id=6fae8d19a131e1236c6bf19754c580cc4414cf52


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. However, a fully functional exploit for this vulnerability is available.



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