ID: IRCNE2013011728
Date: 2013-01-13
According to "computerworld", security researchers say a patch released by Yahoo earlier this week for a serious email vulnerability did not fix the problem, leaving users at risk.
The cross-site scripting flaw was found by Shahin Ramezany, who goes by the nickname "Abysssec." The vulnerability can allow an attacker to harvest a victim's cookie for their Yahoo account if the victim is successfully tricked into clicking on a malicious link.
The vulnerability was patched by Yahoo on Monday, but penetration testing company Offensive Security and Ramezany say that the patch did not fix the problem.
"With little modification to the original proof-of-concept code written by Abysssec, it is still possible to exploit the original Yahoo vulnerability, allowing an attacker to completely take over a victim's account," Offensive Security wrote on its blog.
The company said XSS filters provide little defense against an attack and warned that people should be wary of clicking on links within emails until Yahoo fixes the vulnerability.
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