CVE-2012-6571 Auth bypass in n/a

High 7.5 Published Updated

Remote attackers can hijack sessions on Huawei routers and switches by brute-forcing predictable Session IDs, leading to unauthorized access.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2012-6571?

CVE-2012-6571 is a high-severity authentication bypass vulnerability in n/a, published on 20 Jun 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on Huawei AR routers and S2000, S3000, S3500, S3900, S5100, S5600, and S7800 switches uses predictable Session ID values, which makes it easier for remote attackers to hijack sessions via a brute-force attack.

Weakness: CWE-310

Which versions are affected by CVE-2012-6571?

It affects 18 products.

Products include Huawei Ar 18-1x, Huawei Ar 18-2x, Huawei Ar 18-3x, Huawei Ar 19\/29\/49, Huawei Ar 28\/46, Huawei S2000 and 12 more.

How do I fix CVE-2012-6571?

No fix has been published for CVE-2012-6571 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2012-6571 being exploited?

There is no known exploitation of CVE-2012-6571 in the wild and no public exploit code.

Sources

Also known as CVE-2012-4967, GHSA-hggg-cp66-435c.

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