CVE-2022-23627 Inadequate access verification when using proxy commands in ArchiSteamFarm

Medium 5.0 Published 8 Feb 2022 Updated 23 Apr 2025

An attacker with control over one bot can access resources of other bots due to inadequate access verification in proxy commands.

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

What is CVE-2022-23627?

CVE-2022-23627 is a medium-severity missing authorization vulnerability in JustArchiNET ArchiSteamFarm, published on 8 Feb 2022. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

ArchiSteamFarm (ASF) is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code, introduced in version V5.2.2.2, the program didn't adequately verify effective access of the user sending proxy (i.e. `[Bots]`) commands. In particular, a proxy-like command sent to bot `A` targeting bot `B` has incorrectly verified user's access against bot `A` - instead of bot `B`, to which the command was originally designated. This in result allowed access to resources beyond those configured, being a security threat affecting confidentiality of other bot instances. A successful attack exploiting this bug requires a significant access granted explicitly by original owner of the ASF process prior to that, as attacker has to control at least a single bot in the process to make use of this inadequate access verification loophole. The issue is patched in ASF V5.2.2.5, V5.2.3.2 and future versions. Users are advised to update as soon as possible.

Weakness: CWE-863

Which versions are affected by CVE-2022-23627?

It affects 1 product.

Products include Archisteamfarm Project Archisteamfarm.

How do I fix CVE-2022-23627?

No fix has been published for CVE-2022-23627 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-23627 being exploited?

There is no known exploitation of CVE-2022-23627 in the wild and no public exploit code.

Sources

Also known as GHSA-88ch-366c-5m89.