Information disclosure in the Safemode gem for Ruby

1) Information disclosure

EUVDB-ID: #VU10736

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-3693

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The weakness exists due to a provisioning template containing `inspect` when initialized with a delegate object that is a Rails controller. A remote context-dependent attacker can use the inspect method and access sensitive information.

Mitigation

Update to version 1.2.4.

Vulnerable software versions

The Safemode gem for Ruby: 1.0.0 - 1.2.3

CPE2.3

• cpe:2.3:a:ruby:the_safemode_gem_for_ruby:1.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:ruby:the_safemode_gem_for_ruby:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:ruby:the_safemode_gem_for_ruby:1.0.2:*:*:*:*:*:*:*

External links

https://github.com/svenfuchs/safemode/commit/0f764a1720a3a68fd2842e21377c8bfad6d7126f

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.