Firefox Extensions Lift the Keys to the Kingdom
Attackers have myriad ways of gaining access to systems; some are as basic as asking their way in, while others are a bit more high-tech. According to a new Mozilla security bulletin, your Firefox extensions could be the key the hackers are looking for.
The vulnerability — discovered and demonstrated by security researcher Gerry Eisenhaur — involves exploiting so-called "flat" Firefox extensions to access information stored elsewhere on the system. "Flat" extensions are ones not contained within a .jar, which allows an attacker to escape the extensions directory and load files housed elsewhere. Mozilla believes that attackers could use the exploit to harvest information about vulnerability to potential attacks. While security teams are investigating, Mozilla has classified the exploit as low priority, so no news on when it may be fixed.
Justin Ryan is a Contributing Editor for Linux Journal.
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