Fedora EPEL 6 update for tomcat

1) Improper input validation

EUVDB-ID: #VU8697

Risk: Low

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:Clear]

CVE-ID: CVE-2017-7674

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct client and server side cache poisoning.

The weakness exists due to the failure to add an HTTP Vary header indicating that the response varies depending on Origin by the CORS Filter. A remote attacker can trick the victim to follow a specially crafted link and conduct client and server side cache poisoning.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 6.0

tomcat: before 7.0.81-1.el6

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:tomcat:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-f14c660f60

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.