Phishing attack in Opera browser

1) Improper input validation

EUVDB-ID: #VU4204

Risk: High

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2012-6467

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform phishing attacks.
 
The vulnerability exists due to improper input validation when processing Internet shortcuts, referenced by IMG or other inline elements. A remote attacker can create a specially crafted web page, trick the victim into visiting it and perform a phishing attack.

Note: the vulnerability was being actively exploited.

Mitigation

Update to version 12.10 or later.
http://www.opera.com/docs/changelogs/unified/1210/bugfixes/

Vulnerable software versions

Opera: 5..10 - 12.10

External links

http://www.opera.com/docs/changelogs/unified/1210/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.