CVE-2024-38517: Github: CVE-2024-38517 TenCent RapidJSON Elevation of Privilege Vulnerability
CVE-2024-38517 is an elevation of privilege vulnerability in Github, rated Moderate by Microsoft, with a CVSS 3.1 base score of 7.8 (High). An attacker can exploit it by an attacker with local access, without any privileges and only if a user takes an action. Microsoft has not reported exploitation in the wild and rates exploitation as less likely. The EPSS model estimates a 0.38% probability of exploitation activity in the next 30 days, higher than 32% of all scored vulnerabilities. Microsoft released the fix on 9 July 2024 in the July 2024 Patch Tuesday, delivered through 7 security updates (KB5040430, KB5040437, KB5040431, KB5040427 and more). It affects 23 products in 2 product families (Windows, ESU).
Key facts
- CVE ID
- CVE-2024-38517
- Severity
- High CVSS 7.8
- Microsoft severity
- Moderate
- Impact
- Elevation of Privilege
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- Less Likely
- Weakness
- CWE-191
- EPSS
- 0.38% (percentile 32%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- July 2024 Patch Tuesday
- Product families
- Windows, ESU
CVSS score and vector
Microsoft scores CVE-2024-38517 at 7.8 (temporal 6.8) using CVSS 3.1. Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
| Metric | Value |
|---|---|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality impact | High |
| Integrity impact | High |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Frequently asked questions (Microsoft)
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker must send the user a malicious file and convince them to open it.
Why is this GitHub CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in RapidJSON library which is consumed by Microsoft Active Directory Rights Management Services Client. The CVE for this open source component, which is used in a Microsoft product, is assigned by GitHub CNA.
According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H), integrity (I:H), and availability (A:H). What does that mean for this vulnerability?
An attacker who successfully exploited this vulnerability could gain high privileges, which include read, write, and delete functionality.
Affected products (23)
Windows
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows 10 Version 1809 for 32-bit Systems | KB5040430 | Security Update | 10.0.17763.6054 | Yes |
| Windows 10 Version 1809 for x64-based Systems | KB5040430 | Security Update | 10.0.17763.6054 | Yes |
| Windows Server 2019 | KB5040430 | Security Update | 10.0.17763.6054 | Yes |
| Windows Server 2019 (Server Core installation) | KB5040430 | Security Update | 10.0.17763.6054 | Yes |
| Windows Server 2022 | KB5040437 | Security Update | 10.0.20348.2582 | Yes |
| Windows Server 2022 (Server Core installation) | KB5040437 | Security Update | 10.0.20348.2582 | Yes |
| Windows 11 version 21H2 for x64-based Systems | KB5040431 | Security Update | 10.0.22000.3079 | Yes |
| Windows 11 version 21H2 for ARM64-based Systems | KB5040431 | Security Update | 10.0.22000.3079 | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | KB5040427 | Security Update | 10.0.19044.4651 | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5040427 | Security Update | 10.0.19044.4651 | Yes |
| Windows 10 Version 21H2 for x64-based Systems | KB5040427 | Security Update | 10.0.19044.4651 | Yes |
| Windows 11 Version 23H2 for ARM64-based Systems | ||||
| Windows 11 Version 23H2 for x64-based Systems | ||||
| Windows Server 2022, 23H2 Edition (Server Core installation) | KB5040438 | Security Update | 10.0.25398.1009 | Yes |
| Windows 10 Version 1607 for 32-bit Systems | KB5040434 | Security Update | 10.0.14393.7159 | Yes |
| Windows 10 Version 1607 for x64-based Systems | KB5040434 | Security Update | 10.0.14393.7159 | Yes |
| Windows Server 2016 | KB5040434 | Security Update | 10.0.14393.7159 | Yes |
| Windows Server 2016 (Server Core installation) | KB5040434 | Security Update | 10.0.14393.7159 | Yes |
ESU
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Windows 11 Version 22H2 for ARM64-based Systems | KB5040442 | Security Update | 10.0.22621.3880 | Yes |
| Windows 11 Version 22H2 for x64-based Systems | KB5040442 | Security Update | 10.0.22621.3880 | Yes |
| Windows 10 Version 22H2 for x64-based Systems | ||||
| Windows 10 Version 22H2 for ARM64-based Systems | ||||
| Windows 10 Version 22H2 for 32-bit Systems |
Security updates (7)
NIST NVD data
- NVD status
- Deferred
- NVD CVSS
- 7.8 (HIGH)
- NVD weakness
- CWE-191
- Published to NVD
- NVD last modified
References
- https://github.com/Tencent/rapidjson/pull/1261/commits/8269bc2bc289e9d343bae51cdf6d23ef0950e001
- https://github.com/fmalita/rapidjson/commit/8269bc2bc289e9d343bae51cdf6d23ef0950e001
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38517
- https://github.com/Tencent/rapidjson/pull/1261/commits/8269bc2bc289e9d343bae51cdf6d23ef0950e001
- https://github.com/fmalita/rapidjson/commit/8269bc2bc289e9d343bae51cdf6d23ef0950e001
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38517
- https://security.netapp.com/advisory/ntap-20240905-0001/
Acknowledgments
- Anonymous
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |