22949 : phpBB gen_rand_string() Predictable Random Number Generator (RNG) Weakness
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Info

Last Modified

about 1 year ago

Percent Complete

100%

Disclosure

Feb 05, 2006

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Keywords

No Keywords

Description

phpBB contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is caused by a poor seeding of the pseudorandom number generator when handling forgotten password requests. This flaw may lead to a loss of confidentiality or integrity.

Classification

Location: Remote/Network Access Required
Attack Type: Cryptographic
Impact: Loss of Confidentiality, Loss of Integrity
Exploit: Exploit Unknown
OSVDB: Web Related

Technical

Such an attack may require up to 1,000,000 password recovery attempts.

Solution

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Products

phpBB Group

phpBB

2.0.19

References

Secunia Advisory ID: 18727
CVE ID: 2006-0632 (see also: NVD)
ISS X-Force ID: 24573
FrSIRT Advisory: ADV-2006-0461
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-02/0067.html
Other Advisory URL: http://www.r-security.net/tutorials/view/readtutorial.php?id=4

Credit

chinchilla - chinchillagmail.com -

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