CVE-2024-38428
Description
A flaw was found in wget. Incorrect handling of semicolons in the userinfo subcomponent of a URI allows it to be misinterpreted as part of the host subcomponent, potentially exposing user credentials.
Statement
Only calls to Wget using semicolons in the userinfo subcomponent of a URI are vulnerable to this issue. However, this is allowed by the standard and is supported by other similar tools. To exploit this issue, an attacker must convince a local user into running Wget with a specially crafted userinfo subcomponent, limiting the exposure of this vulnerability. For these reasons, this vulnerability has been rated with a moderate severity.
Additionally, this vulnerability only affects wget 1.x, wget2 is not affected.
Mitigation
Make sure to not add semicolons in the userinfo subcomponent of a URI.
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 | 5.5 | 9.1 | 9.1 |
| Attack Vector | Local | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | Required | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | None | High | High |
| Availability Impact | None | None | None |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Red Hat CVSS v3 Score Explanation
Wget is a network tool but it is used locally via the command line. To reflect this, the Attack Vector metric is set to Local. To this issue be exploited, a user must run Wget with a malformed userinfo subcomponent, thus the User Interaction metric is set to Required. The security impact of this vulnerability is the exposure of sensitive information, such as usernames and passwords, thus the Integrity metric is set to None.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Unexpected State
Frequently Asked Questions
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