Input validation error in apache2 (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-10098
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 apache2 (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) Input validation error

EUVDB-ID: #VU20374

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2019-10098

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to incorrect handling of encoded line break characters  within rewrite rules. A remote attacker can send a specially crafted HTTP request and potentially bypass security restrictions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

apache2 (Alpine package): 2.4.39-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=2352aedda7b946046e3bb408f94d6053f6468d74
https://git.alpinelinux.org/aports/commit/?id=20dd33ed391e86126662bbb87b9b3d904e12d0b1
https://git.alpinelinux.org/aports/commit/?id=720693cedfbcd03efff48adf05e47e4f4d1528f0
https://git.alpinelinux.org/aports/commit/?id=c362e6f4f23eab577c0f6f522ec442a889ba2713
https://git.alpinelinux.org/aports/commit/?id=f69ef91711a9edd270c57081b8cd8230ad8fed24


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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