CVE-2018-20221 Deserialization in n/a

High 8.8 Published Updated

An authenticated attacker can achieve remote code execution by sending malicious serialized data to the application, impacting the IIS Application Pool.

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

What is CVE-2018-20221?

CVE-2018-20221 is a high-severity unsafe deserialization vulnerability in n/a, published on 17 Mar 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Secure/SAService.rem in Deltek Ajera Timesheets 9.10.16 and prior are vulnerable to remote code execution via deserialization of untrusted user input from an authenticated user. The executed code will run as the IIS Application Pool that is running the application.

Weakness: CWE-502

Which versions are affected by CVE-2018-20221?

It affects 1 product.

Products include Deltek Ajera.

How do I fix CVE-2018-20221?

No fix has been published for CVE-2018-20221 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2018-20221 being exploited?

There is no known exploitation of CVE-2018-20221 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-2899-wfp7-cq2f.

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