DB2 for Linux, UNIX and Windows: Improper Privilege Management
CVE-2022-22390 is a high-severity improper privilege management vulnerability in DB2 for Linux, UNIX and Windows from IBM, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected DB2 for Linux, UNIX and Windows versions: 10.5; 10.1; 9.7, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.99% chance of exploitation within 30 days, higher than 63% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of DB2 for Linux, UNIX and Windows you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on exchange.xforce.ibmcloud.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| IBM | DB2 for Linux, UNIX and Windows | 10.5; 10.1; 9.7; 11.1; 11.5 | Not stated |
| IBM | Db2 | 9.7; 10.1; 10.5; 11.1; 11.5 | Not stated |
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
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- 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:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | NVD |
| CVSS 3.0 | 6.2 | Medium | CNA (us.ibm.com) |
| CVSS 2.0 | 5.0 | Medium | NVD |
Official description
IBM Db2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, 11.1, and 11.5 may be vulnerable to an information disclosure caused by improper privilege management when table function is used. IBM X-Force ID: 221973.
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
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Third-party and government advisories
- security.netapp.com/advisory/ntap-20220729-0007/Third Party Advisory
Other vulnerabilities in DB2 for Linux, UNIX and Windows
- 8.2 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 7.2 High severity
- 7.5 High severity
Recent Improper Privilege Management vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Spotted an error? Tell us.