EDB Postgres Advanced Server: Improper Privilege Management
CVE-2024-4545 is a high-severity improper privilege management vulnerability in EDB Postgres Advanced Server from EnterpriseDB, with a CVSS 3.1 base score of 7.7 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists versions 15.7.0, 16.3.0 as the first without the flaw, so updating EDB Postgres Advanced Server to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.53% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update EDB Postgres Advanced Server to 15.7.0 or 16.3.0, whichever matches your release line, or a later version.
- Read the advisory on enterprisedb.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| EnterpriseDB | EDB Postgres Advanced Server | 15.0 up to, but not including, 15.7.0; 16.0 up to, but not including, 16.3.0 | 15.7.0, 16.3.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N. Scored by CNA.
Official description
All versions of EnterpriseDB Postgres Advanced Server (EPAS) from 15.0 prior to 15.7.0 and from 16.0 prior to 16.3.0 may allow users using edbldr to bypass role permissions from pg_read_server_files. This could allow low privilege users to read files to which they would not otherwise have access.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other references
Recent Improper Privilege Management vulnerabilities
- 8.8 High severity
- 7.8 High severity
- 8.8 High severity
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
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