Cross-site scripting in ruby-rails (Alpine package)

1) Cross-site scripting

EUVDB-ID: #VU32878

Risk: Low

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

CVE-ID: CVE-2013-1857

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via a crafted scheme name, as demonstrated by including a : sequence. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

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 update from vendor's website.

Vulnerable software versions

ruby-rails (Alpine package): 2.3.11-r0

External links

http://git.alpinelinux.org/aports/commit/?id=071aa398a5f2aaa3fd87fac7b6b113e5b4885ce6
http://git.alpinelinux.org/aports/commit/?id=9f3c3089dc26b26d6b1949880f09b7c231c6cc42
http://git.alpinelinux.org/aports/commit/?id=5c028fa18d7864d9ca882864495c365d5d940864

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.