Home/CVE/Improper serialization of internal state in the authorization subsystem in MongoDB Server's authorization subsystem perm
CVE

CVE-2020-7921

Improper serialization of internal state in the authorization subsystem in MongoDB Server's authorization subsystem perm

Improper serialization of internal state in the authorization subsystem in MongoDB Server's authorization subsystem permits a user with valid credentials to bypass IP whitelisting protection mechanisms following administrative action. This issue affects MongoDB Server v4.2 versions prior to 4.2.3.

MongoDB Server v4.0 versions prior to 4.0.15.

MongoDB Server v4.3 versions prior to 4.3.3and MongoDB Server v3.6 versions prior to 3.6.18.

MEDIUM · CVSS 4.6 EPSS 0.00179
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-182Collapse of Data into Unsafe Value
CWE-863Incorrect Authorization
▤

Affected Products & Versions

4
mongodb>= 3.6.0 and < 3.6.18
mongodb>= 4.0.0 and < 4.0.15
mongodb>= 4.2.0 and < 4.2.3
mongodb>= 4.3.0 and < 4.3.3
▣

Scoring & Timeline

4.6
MEDIUM · CVSS v3.1 · cna@mongodb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2020 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
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🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.mongodb.org/browse/SERVER-45472PatchVendor Advisory
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