Vulnerability identifier: #VU11074

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000119

CWE-ID: CWE-208

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Sinatra
Web applications / Remote management & hosting panels

Vendor: Sinatra

Description
The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to insufficient security restrictions. A remote attacker can conduct a timing attack and gain access to potentially sensitive information, such as signatures.

Mitigation
Update to versions 1.5.5 or 2.0.0.

Vulnerable software versions

Sinatra: 1.5.0 - 2.0.0 rc3

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External links
http://github.com/sinatra/rack-protection/pull/98
http://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-279...

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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.