Incorrect validation of the TLS SNI hostname in osquery versions after 2.9.0 and before 4.2.0 could allow an attacker to MITM osquery…

Description

Incorrect validation of the TLS SNI hostname in osquery versions after 2.9.0 and before 4.2.0 could allow an attacker to MITM osquery traffic in the absence of a configured root chain of trust.

Scores

EPSS (exploitation in 30 days)

1.6% · top 24% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.

Weakness

• CWE-297: Improper Validation of Certificate with Host Mismatch (CWE-297) (opens in a new tab)All about CWE-297 and its CVEs
• CWE-295 (opens in a new tab)All about CWE-295 and its CVEs

Affected products

• Facebook · Osquery

  • affected 4.2.0
  • affected next of 2.9.0 – < unspecified
  • affected 2.9.0

References (2)

• https://github.com/osquery/osquery/pull/6197 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.facebook.com/security/advisories/cve-2020-1887 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2020-1887](https://trackcve.app/badge/CVE-2020-1887.svg)](https://trackcve.app/cve/CVE-2020-1887)

Record last updated 4 Aug 2024, 06:54 UTC.