6.5med

CVE-2018-20802

Post-auth queries on compound index may crash mongod

Published 5 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
1.6%
percentile 76%
Public exploits
0
none known

Summary

A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries with compound indexes affecting QueryPlanner. This issue affects MongoDB Server v3.6 versions prior to 3.6.9 and MongoDB Server v4.0 versions prior to 4.0.3.

Exploit prediction (EPSS)

1.58% probability of exploitation in the next 30 days, higher than 76% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.16.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA3.16.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD3.16.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.0AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • MongoDB Inc. MongoDB Server

Classification

Weakness
  • CWE-394 Unexpected Status Code or Return Value
Technology feeds
MongoDB (RSS, critical only)

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.