Auth bypass in PostgreSQL
CVE-2020-1720
A flaw was found in PostgreSQL's "ALTER ... DEPENDS ON EXTENSION", where sub-commands did not perform authorization checks. An authenticated attacker could use this flaw in certain configurations to perform drop objects such as function, triggers, et al., leading to database corruption. This issue affects PostgreSQL versions before 12.2, before 11.7, before 10.12 and before 9.6.17.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- PostgreSQL
- Red Hat PostgreSQL — versions 12.2, 11.7, 10.12
- Red Hat Decision Manager — versions 7.0
- Red Hat Enterprise Linux — versions 8.0
- Red Hat Software Collections
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.postgresql.org/about/news/2011/ (Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00043.html (vendor-advisory)
Frequently asked questions
- What is CVE-2020-1720?
- CVE-2020-1720 is a low-severity vulnerability in PostgreSQL, classified under Improper Authorization. CVSS score: 3.1/10. Published 2020-03-17.
- How severe is CVE-2020-1720?
- Low severity. CVSS v3 base score is 3.1 out of 10.
- Is CVE-2020-1720 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.