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CVE-2020-4045— Information disclosure in SSB-DB

Quick assessment

Affected
ssbc SSB-DB
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.

SSB-DB是一款安全信息存储插件。 SSB-DB 20.0.0版本中存在信息泄露漏洞，该漏洞源于‘get()’方法可以解密任何消息。攻击者可利用该漏洞访问私人数据。

CVSS 7.5 · High EPSS 1.29% · P69

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2020-4045

Vulnerability Information
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Vulnerability Title
Information disclosure in SSB-DB
Source: CVE Program / CVE List V5
Vulnerability Description
SSB-DB version 20.0.0 has an information disclosure vulnerability. The get() method is supposed to only decrypt messages when you explicitly ask it to, but there is a bug where it's decrypting any message that it can. This means that it is returning the decrypted content of private messages, which a malicious peer could use to get access to private data. This only affects peers running SSB-DB@20.0.0 who also have private messages, and is only known to be exploitable if you're also running SSB-OOO (default in SSB-Server), which exposes a thin wrapper around get() to anonymous peers. This is fixed in version 20.0.1. Note that users of SSB-Server verion 16.0.0 should upgrade to 16.0.1 to get the fixed version of SSB-DB.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
SSB-DB 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SSB-DB是一款安全信息存储插件。 SSB-DB 20.0.0版本中存在信息泄露漏洞，该漏洞源于‘get()’方法可以解密任何消息。攻击者可利用该漏洞访问私人数据。
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
ssbc SSB-DB = 20.0.0 -

II. Public POCs for CVE-2020-4045

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III. Intelligence Information for CVE-2020-4045

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Patches & Fixes for CVE-2020-4045 (1)

Vendor Advisories for CVE-2020-4045 (1)

IV. Related Vulnerabilities

Same weakness: CWE-200

V. Comments for CVE-2020-4045

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