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CVE-2021-32794— Accidental removal of IPCPassword (< 5.1.2.4)

Quick assessment

Affected
JustArchiNET ArchiSteamFarm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ArchiSteamFarm是一个 C应用程序，主要目的是同时从多个帐户中空闲 Steam 卡。 ArchiSteamFarm 存在访问控制错误漏洞，该漏洞源于ASF代码 POST /Api/ASF 中的错误，负责更新全局ASF配置的ASF API端点在调用者未明确指定时错误地从结果配置中删除了 IPCPassword。

CVSS 6.8 · Medium EPSS 1.03% · P61
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I. Basic Information for CVE-2021-32794

Vulnerability Information
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Vulnerability Title
Accidental removal of IPCPassword (< 5.1.2.4)
Source: CVE Program / CVE List V5
Vulnerability Description
ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code `POST /Api/ASF` ASF API endpoint responsible for updating global ASF config incorrectly removed `IPCPassword` from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove `IPCPassword` security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of `IPCPassword` possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that `IPCPassword` is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from `localhost` only and should not affect majority of users.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ArchiSteamFarm 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ArchiSteamFarm是一个 C# 应用程序，主要目的是同时从多个帐户中空闲 Steam 卡。 ArchiSteamFarm 存在访问控制错误漏洞，该漏洞源于ASF代码 POST /Api/ASF 中的错误，负责更新全局ASF配置的ASF API端点在调用者未明确指定时错误地从结果配置中删除了 IPCPassword。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
JustArchiNET ArchiSteamFarm < 5.1.2.4 -

II. Public POCs for CVE-2021-32794

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III. Intelligence Information for CVE-2021-32794

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Patches & Fixes for CVE-2021-32794 (1)

Vendor Advisories for CVE-2021-32794 (1)

Other References for CVE-2021-32794 (1)

IV. Related Vulnerabilities

Same product: ArchiSteamFarm
Same vendor: JustArchiNET
Same weakness: CWE-287

V. Comments for CVE-2021-32794

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