Vulnerability in PostgreSQL
CVE-2021-43767
Odyssey passes to client unencrypted bytes from man-in-the-middle When Odyssey storage is configured to use the PostgreSQL server using 'trust' authentication with a 'clientcert' requirement or to use 'cert' authentication, a man-in-the-middle attacker can inject false responses to the client's first few queries. Despite the use of SSL certificate verification and encryption, Odyssey will pass these results to client as if they originated from valid server. This is similar to CVE-2021-23222 for PostgreSQL.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- PostgreSQL — versions 14.0
- Odyssey — versions Odyssey 1.1
Weakness classification (CWE)
References
- www.postgresql.org/support/security/CVE-2021-23222/ (Not Applicable, Vendor Advisory)
- github.com/yandex/odyssey/issues/377,
Frequently asked questions
- What is CVE-2021-43767?
- CVE-2021-43767 is a medium-severity vulnerability in PostgreSQL, classified under Insufficiently Protected Credentials. CVSS score: 5.9/10. Published 2022-08-25.
- How severe is CVE-2021-43767?
- Medium severity. CVSS v3 base score is 5.9 out of 10.