EAP 7.4.14: Improper Initialization
CVE-2023-4503 is a high-severity improper initialization vulnerability in EAP 7.4.14 from Red Hat, 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. There is no confirmed exploitation so far. EPSS estimates a 0.72% chance of exploitation within 30 days, higher than 55% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of EAP 7.4.14 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on access.redhat.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 |
|---|---|---|---|
| Red Hat | EAP 7.4.14 | Not specified in the record | Not stated |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | Not specified in the record | Not stated |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 | Not specified in the record | Not stated |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | Not specified in the record | Not stated |
| Red Hat | Jboss Enterprise Application Platform | 7.4 | Not stated |
| Red Hat | Jboss Enterprise Application Platform Expansion Pack | Not specified in the record | 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 | 6.8 | Medium | CNA (redhat.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
An improper initialization vulnerability was found in Galleon. When using Galleon to provision custom EAP or EAP-XP servers, the servers are created unsecured. This issue could allow an attacker to access remote HTTP services available from the server.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Initialization
The product does not initialize or incorrectly initializes a resource.
How developers prevent this class of flaw
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable's type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.
- Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
- Explicitly initialize all your variables and other data stores, either during declaration or just before the first usage.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other references
- bugzilla.redhat.com/show_bug.cgi?id=2184751Issue Tracking
Recent Improper Initialization vulnerabilities
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 9.8 Critical severity
- 7.5 High severity
- 8.8 High severity
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