Vulnerability Details : CVE-2022-31139
UnsafeAccessor (UA) is a bridge to access jdk.internal.misc.Unsafe & sun.misc.Unsafe. Normally, if UA is loaded as a named module, the internal data of UA is protected by JVM and others can only access UA via UA's standard API. The main application can set up `SecurityCheck.AccessLimiter` for UA to limit access to UA. Starting with version 1.4.0 and prior to version 1.7.0, when `SecurityCheck.AccessLimiter` is set up, untrusted code can access UA without limitation, even when UA is loaded as a named module. This issue does not affect those for whom `SecurityCheck.AccessLimiter` is not set up. Version 1.7.0 contains a patch.
Vulnerability category: Information leak
Products affected by CVE-2022-31139
- cpe:2.3:a:unsafe_accessor_project:unsafe_accessor:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-31139
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-31139
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-31139
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-31139
-
https://github.com/Karlatemp/UnsafeAccessor/releases/tag/1.7.0
Release 1.7.0 · Karlatemp/UnsafeAccessor · GitHubRelease Notes;Third Party Advisory
-
https://github.com/Karlatemp/UnsafeAccessor/security/advisories/GHSA-cr6p-23cf-w9g9
NO Security checking for UnsafeAccess.getInstance() · Advisory · Karlatemp/UnsafeAccessor · GitHubPatch;Third Party Advisory
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https://github.com/Karlatemp/UnsafeAccessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd
Fix UnsafeAccess perm checking · Karlatemp/UnsafeAccessor@4ef8300 · GitHubPatch;Third Party Advisory
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