CVE-2022-42889
Description
A flaw was found in Apache Commons Text packages 1.5 through 1.9. The affected versions allow an attacker to benefit from a variable interpolation process contained in Apache Commons Text, which can cause properties to be dynamically defined. Server applications are vulnerable to remote code execution (RCE) and unintentional contact with untrusted remote servers.
Statement
In order to carry successful exploitation of this vulnerability, the following conditions must be in place on the affected target:
- Usage of specific methods that interpolate the variables as described in the flaw
- Usage of external input for those methods
- Usage of that external input has to be unsanitized/no "allow list"/etc.
The following products have Low impact because they have maven references to the affected package but do not ship it nor use the code:
- Red Hat EAP Expansion Pack (EAP-XP)
- Red Hat Camel-K
- Red Hat Camel-Quarkus
Red Hat Satellite ships Candlepin that embeds Apache Commons Text, however, it is not vulnerable to the flaw since the library has not been exposed in the product code. In Candlepin, the Commons Text is being pulled for the Liquibase and ActiveMQ Artemis libraries as a dependency. Red Hat Product Security has evaluated and rated the impact of the flaw as Low for Satellite since there was no harm identified to the confidentiality, integrity, or availability of systems.
- The OCP has a Moderate impact because the affected library is a third-party library in the OCP jenkins-2-plugin component which reduces the possibilities of successful exploitation.
- The OCP-4.8 is affected by this CVE and is in an extended life phase. For versions of products in the Extended Life Phase, Red Hat will provide limited ongoing technical support. No bug fixes, security fixes, hardware enablement or root-cause analysis will be available during this phase, and support will be provided on existing installations only.
Mitigation
This flaw may be avoided by ensuring that any external inputs used with the Commons-Text lookup methods are sanitized properly. Untrusted input should always be thoroughly sanitized before using in any potentially risky situations.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 9.8 | 9.8 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
In some cases, injectable code controls authentication; this may lead to a remote vulnerability.
Access Control
Technical Impact: Gain Privileges or Assume Identity
Injected code can access resources that the attacker is directly prevented from accessing.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
When a product allows a user's input to contain code syntax, it might be possible for an attacker to craft the code in such a way that it will alter the intended control flow of the product. As a result, code injection can often result in the execution of arbitrary code. Code injection attacks can also lead to loss of data integrity in nearly all cases, since the control-plane data injected is always incidental to data recall or writing.
Non-Repudiation
Technical Impact: Hide Activities
Often the actions performed by injected control code are unlogged.
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