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CVE-2019-10127

HIGHCVSS 8.8/10EPSS 0.32%

Last modified

CVE-2019-10127 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability was found in postgresql versions 11.x prior to 11.3. The Windows installer for BigSQL-supplied PostgreSQL does not lock down the ACL of the binary installation directory or the ACL of the data directory; it keeps the inherited ACL. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

A vulnerability was found in postgresql versions 11.x prior to 11.3. The Windows installer for BigSQL-supplied PostgreSQL does not lock down the ACL of the binary installation directory or the ACL of the data directory; it keeps the inherited ACL. In the default configuration, an attacker having both an unprivileged Windows account and an unprivileged PostgreSQL account can cause the PostgreSQL service account to execute arbitrary code. An attacker having only the unprivileged Windows account can read arbitrary data directory files, essentially bypassing database-imposed read access limitations. An attacker having only the unprivileged Windows account can also delete certain data directory files.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
0.32%

23.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PostgresqlPostgresql< 9.4.22
PostgresqlPostgresql>= 9.5.0, < 9.5.17
PostgresqlPostgresql>= 9.6.0, < 9.6.13
PostgresqlPostgresql>= 10.0, < 10.8
PostgresqlPostgresql>= 11.0, < 11.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-10127?
A vulnerability was found in postgresql versions 11.x prior to 11.3. The Windows installer for BigSQL-supplied PostgreSQL does not lock down the ACL of the binary installation directory or the ACL of the data directory; it keeps the inherited ACL. In the default configuration, an attacker having both an unprivileged Windows account and an unprivileged PostgreSQL account can cause the PostgreSQL service account to execute arbitrary code. An attacker having only the unprivileged Windows account can read arbitrary data directory files, essentially bypassing database-imposed read access limitations. An attacker having only the unprivileged Windows account can also delete certain data directory files.
How severe is CVE-2019-10127?
CVE-2019-10127 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2019-10127?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-10127?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST