CVE-2022-23627 is a medium-severity vulnerability classified under CWE-863 (Incorrect Authorization) affecting JustArchiNET's ArchiSteamFarm (ASF), a C# application designed to idle Steam trading cards across multiple accounts simultaneously. The vulnerability arises from improper authorization checks in the handling of proxy-like commands between bots within the ASF process. Specifically, when a command is sent from bot A targeting bot B, the application incorrectly verifies the user's access rights against bot A instead of bot B. This flaw allows an attacker who controls at least one bot instance within the ASF process to access resources and perform actions on other bot instances beyond their configured permissions. Exploitation requires that the attacker already has significant access granted by the ASF process owner, as they must control a bot to leverage the authorization bypass. The vulnerability affects ASF versions from 5.2.2.2 up to but not including 5.2.2.5, and versions from 5.2.3.0 up to but not including 5.2.3.2. The issue has been patched in ASF versions 5.2.2.5, 5.2.3.2, and later. No known exploits have been reported in the wild. The flaw compromises confidentiality by allowing unauthorized access to other bot instances' data and potentially their Steam accounts or related resources. However, the attack complexity is relatively high due to the prerequisite of controlling a bot instance and having prior access granted by the ASF owner. No user interaction beyond controlling a bot is required once access is established. The vulnerability does not directly affect availability or integrity but could indirectly impact integrity if unauthorized commands are executed on other bots.

For European organizations using ArchiSteamFarm, particularly those managing multiple Steam accounts for marketing, gaming, or digital asset management, this vulnerability poses a risk to the confidentiality of account information and bot configurations. Unauthorized access to bot instances could lead to exposure of sensitive account credentials or manipulation of Steam card farming activities, potentially resulting in financial loss or reputational damage. While the vulnerability requires prior access to the ASF process, insider threats or compromised internal systems could exploit this flaw to escalate privileges within the ASF environment. Given the niche use case of ASF primarily in gaming communities and digital asset collectors, the impact on large enterprises may be limited unless ASF is integrated into broader automation workflows. However, smaller organizations or individuals relying heavily on ASF for automated Steam card farming should prioritize remediation to prevent unauthorized lateral movement between bot instances. The lack of known exploits reduces immediate risk, but the presence of a patch indicates the vendor's acknowledgment of the threat.

1. Immediate upgrade of ArchiSteamFarm to versions 5.2.2.5, 5.2.3.2, or later to apply the official patch addressing the authorization flaw. 2. Restrict access to ASF processes and bot control interfaces to trusted users only, minimizing the risk of an attacker gaining control of any bot instance. 3. Implement strict access controls and monitoring on systems running ASF to detect unauthorized bot control or anomalous command activity between bots. 4. Use network segmentation and application whitelisting to limit ASF communication to only necessary internal systems, reducing the attack surface. 5. Regularly audit ASF configurations and bot permissions to ensure no excessive privileges are granted that could be exploited. 6. Educate users and administrators about the importance of safeguarding ASF credentials and bot control access to prevent insider threats. 7. Employ endpoint detection and response (EDR) solutions to monitor for suspicious behavior related to ASF processes. These measures go beyond generic patching by focusing on operational security and access management to mitigate exploitation risks effectively.