Blizzard World of Warcraft 3.3.5a Wow.exe memory corruption

Summaryinfo

A vulnerability has been found in Blizzard World of Warcraft 3.3.5a and classified as problematic. The impacted element is an unknown function of the file Wow.exe. The manipulation leads to memory corruption. Moreover, an exploit is present. This vulnerability has a historic impact because of its background and how it was received.

Detailsinfo

A vulnerability was found in Blizzard World of Warcraft 3.3.5a and classified as problematic. This issue affects an unknown part of the file Wow.exe. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 07/21/2014 by Alireza Chegini as File 127547 as not defined advisory (Packetstorm). The advisory is shared at packetstormsecurity.com. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/13/2019). Due to its background and reception, this vulnerability has a historic impact.

A public exploit has been developed by Alireza Chegini in Macro and been published immediately after the advisory. The exploit is available at packetstormsecurity.com. It is declared as proof-of-concept. The code used by the exploit is:

MACRO 1 "Decursive" INV_Misc_QuestionMark
/stopcasting
/cast [target=mouseover,nomod,exists] Dispel Magic;  [target=mouseover,exists,mod:ctrl] Abolish Disease; [target=mouseover,exists,mod:shift] Dispel Magic
END
MACRO 2 "PoC" INV_Misc_QuestionMark
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA x n+1 :-)
END

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (94759), Exploit-DB (34129), SecurityFocus (BID 68801†) and OSVDB (109375†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Blizzard

Name

• World of Warcraft

Version

• 3.3.5a

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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