70276 : MyBB member.php SQL COUNT Function Call User Table scan Remote DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
6	13394	over 2 years ago	over 2 years ago	2 times	100%

Timeline

Disclosure Date
2010-01-08

Description

MyBB contains a flaw that may allow a remote denial of service. The issue is triggered when the member.php script makes a superfluous call to the SQL COUNT function, allowing a remote attacker to make requests to member.php which scan the entire users table, causing a denial of service via resource consumption.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified
OSVDB: Web Related

Solution

Upgrade to version 1.4.12 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

MyBB Group

MyBB

1.4.11

References

CVE ID: 2010-4628 (see also: NVD)
Vendor Specific News/Changelog Entry: http://blog.mybb.com/2010/04/13/mybb-1-4-12-released-security-maintenance-update/
http://dev.mybboard.net/issues/662
Other Advisory URL: http://openwall.com/lists/oss-security/2010/10/08/7
http://openwall.com/lists/oss-security/2010/10/11/8
http://openwall.com/lists/oss-security/2010/12/06/2

Credit

Jesse Labrocca

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2010-12-31 | Disagree?

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