CVE-2021-27141 Hardcoded credentials in n/a

Critical 9.8 Published Updated

Attackers can decrypt router configuration files using a hardcoded XOR key to expose sensitive credentials.

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-2021-27141?

CVE-2021-27141 is a critical vulnerability in n/a, published on 10 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on FiberHome HG6245D devices through RP2613. Credentials in /fhconf/umconfig.txt are obfuscated via XOR with the hardcoded *j7a(L#yZ98sSd5HfSgGjMj8;Ss;d)(*&^#@$a2s0i3g key. (The webs binary has details on how XOR is used.)

Weakness: CWE-798

Which versions are affected by CVE-2021-27141?

It affects 1 product.

Products include Fiberhome Hg6245d Firmware.

How do I fix CVE-2021-27141?

No fix has been published for CVE-2021-27141 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-27141 being exploited?

There is no known exploitation of CVE-2021-27141 in the wild and no public exploit code.

Sources

Also known as GHSA-f5rh-xqjc-3gc6.

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