Input validation error in apache2 (Alpine package)



Published: 2019-04-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-0220
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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apache2 (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) Input validation error

EUVDB-ID: #VU18113

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0220

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to the web server does not merge consecutive slashes in URLs, that can lead to incorrect processing of requests when accessing CGI programs. Such web server behavior may lead to security restrictions bypass.

Mitigation

Install update from vendor's website.

Vulnerable software versions

apache2 (Alpine package): 2.2.20-r0 - 2.4.38-r3

External links

http://git.alpinelinux.org/aports/commit/?id=0342bb148db2b28dcced8a4c5b8e2840f3af9a44
http://git.alpinelinux.org/aports/commit/?id=9d23763439dabef4a81c7cc9c061b69048df9708
http://git.alpinelinux.org/aports/commit/?id=bbf41c02f848c8e5967bd857c6988274dc55f068
http://git.alpinelinux.org/aports/commit/?id=ef86fbabe1c2c14cf06d8c26c6141b650e92049d


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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