Vulnerability Details : CVE-2020-4045
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.
Vulnerability category: Information leak
Products affected by CVE-2020-4045
- cpe:2.3:a:scuttlebutt:ssb-db:20.0.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-4045
0.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-4045
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2020-4045
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Primary)
References for CVE-2020-4045
-
https://github.com/ssbc/ssb-db/commit/43334d0871c9cc6220e0f6d6338499060f7761d4
Patch;Third Party Advisory
-
https://github.com/ssbc/ssb-db/security/advisories/GHSA-mpgr-2cx9-327h
Third Party Advisory
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