CVE-2022-44268
Description
An information disclosure vulnerability was found in ImageMagick. This flaw allows an attacker to read arbitrary files from a server when parsing an image and happens when the program is parsing a PNG image. If ImageMagick has permission to read other arbitrary files, the resulting image could have been embedded with contents from another file on the machine after the parsing process.
Mitigation
To mitigate the issue, we recommend setting a security policy that is suitable for your local environment. Add this to your security policy (policy.xml):
<policy domain="path" rights="none" pattern="/etc/*"/> <!-- don't read sensitive paths -->
With above policy, you get:
$ magick logo: -set profile /etc/passwd logo.png
magick: attempt to perform an operation not allowed by the security policy `/etc/passwd' @ error/blob.c/FileToBlob/1433.
This can be as draconian as needed. Use /* as the path to prevent reading any file with an absolute path. You can also protect against relative paths:
<policy domain="path" rights="none" pattern="../*"/>
(For more information, refer to the complete issue discussion in external references)
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | 6.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/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:R/S:U/C:H/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Frequently Asked Questions
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