#VU40528 Security Features in Fedora - CVE-2015-8400

Vulnerability identifier: #VU40528

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-8400

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Fedora
Operating systems & Components / Operating system

Vendor: Fedoraproject

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The HTTPS fallback implementation in Shell In A Box (aka shellinabox) before 2.19 makes it easier for remote attackers to conduct DNS rebinding attacks via the "/plain" URL.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Fedora: 22 - 23

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External links
https://lists.fedoraproject.org/pipermail/package-announce/2016-January/175117.html
https://lists.fedoraproject.org/pipermail/package-announce/2016-January/175224.html
https://www.openwall.com/lists/oss-security/2015/12/02/6
https://www.openwall.com/lists/oss-security/2015/12/02/7
https://github.com/shellinabox/shellinabox/issues/355
https://github.com/shellinabox/shellinabox/releases/tag/v2.19

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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.