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Debian Linux CVE-2023-23908

MEDIUM
Improper Access Control (CWE-284)
2023-08-11 secure@intel.com
Authentication Bypass Information Disclosure Debian Intel Debian Linux Fedora Xeon D 1649N Firmware Xeon D 1633N Firmware Xeon D 1637 Firmware Xeon D 1627 Firmware Xeon D 1623N Firmware Xeon D 1622 Firmware Xeon D 1653N Firmware Xeon D 1602 Firmware Xeon D 2141I Firmware Xeon D 2177Nt Firmware Xeon D 2161I Firmware Xeon D 2143It Firmware Xeon D 2146Nt Firmware Xeon D 2145Nt Firmware Xeon D 2123It Firmware Xeon D 2173It Firmware Xeon D 2187Nt Firmware Xeon D 2142It Firmware Xeon D 2163It Firmware Xeon D 2183It Firmware Xeon D 2166Nt Firmware Xeon D 1513N Firmware Xeon D 1533N Firmware Xeon D 1553N Firmware Xeon D 1523N Firmware Xeon D 1543N Firmware Xeon D 1559 Firmware Xeon D 1529 Firmware Xeon D 1539 Firmware Xeon D 1567 Firmware Xeon D 1557 Firmware Xeon D 1577 Firmware Xeon D 1571 Firmware Xeon D 1528 Firmware Xeon D 1541 Firmware Xeon D 1518 Firmware Xeon D 1521 Firmware Xeon D 1531 Firmware Xeon D 1548 Firmware Xeon D 1527 Firmware Xeon D 1537 Firmware Xeon D 1540 Firmware Xeon D 1520 Firmware Microcode Xeon Gold 6342 Firmware Xeon Gold 6346 Firmware Xeon Gold 6330 Firmware Xeon Platinum 8360Y Firmware Xeon Gold 6354 Firmware Xeon Gold 6314U Firmware Xeon Gold 6338N Firmware Xeon Silver 4314 Firmware Xeon Silver 4316 Firmware Xeon Gold 5318Y Firmware Xeon Gold 5317 Firmware Xeon Gold 6334 Firmware Xeon Gold 6326 Firmware Xeon Silver 4309Y Firmware Xeon Gold 6348 Firmware Xeon Silver 4310 Firmware Xeon Gold 6338T Firmware Xeon Gold 5318S Firmware Xeon Gold 6336Y Firmware Xeon Gold 5318N Firmware Xeon Gold 6312U Firmware Xeon Silver 4310T Firmware Xeon Gold 5320T Firmware Xeon Gold 5320 Firmware Xeon Gold 5315Y Firmware Xeon Platinum 8352M Firmware Xeon Platinum 8362 Firmware Xeon Platinum 8368 Firmware Xeon Platinum 8358 Firmware Xeon Platinum 8352Y Firmware Xeon Gold 6338 Firmware Xeon Gold 6330N Firmware Xeon Platinum 8380 Firmware Xeon Platinum 8351N Firmware Xeon Platinum 8368Q Firmware Xeon Platinum 8352S Firmware Xeon Platinum 8358P Firmware Xeon Platinum 8352V Firmware Xeon Platinum 8360Hl Firmware Xeon Platinum 8360H Firmware Xeon Platinum 8356H Firmware Xeon Gold 6330H Firmware Xeon Platinum 8380H Firmware Xeon Gold 5318H Firmware Xeon Gold 6328H Firmware Xeon Gold 5320H Firmware Xeon Platinum 8353H Firmware Xeon Platinum 8354H Firmware Xeon Gold 6348H Firmware Xeon Platinum 8376H Firmware Xeon Platinum 8376Hl Firmware Xeon Platinum 8380Hl Firmware Xeon Gold 6328Hl Firmware Xeon D 1702 Firmware Xeon D 1712Tr Firmware Xeon D 1713Nt Firmware Xeon D 1713Nte Firmware Xeon D 1714 Firmware Xeon D 1715Ter Firmware Xeon D 1718T Firmware Xeon D 1722Ne Firmware Xeon D 1726 Firmware Xeon D 1732Te Firmware Xeon D 1733Nt Firmware Xeon D 1734Nt Firmware Xeon D 1735Tr Firmware Xeon D 1736 Firmware Xeon D 1736Nt Firmware Xeon D 1739 Firmware Xeon D 1746Ter Firmware Xeon D 1747Nte Firmware Xeon D 1748Te Firmware Xeon D 1749Nt Firmware Xeon D 2712T Firmware Xeon D 2733Nt Firmware Xeon D 2738 Firmware Xeon D 2752Nte Firmware Xeon D 2752Ter Firmware Xeon D 2753Nt Firmware Xeon D 2766Nt Firmware Xeon D 2775Te Firmware Xeon D 2776Nt Firmware Xeon D 2779 Firmware Xeon D 2786Nte Firmware Xeon D 2795Nt Firmware Xeon D 2796Nt Firmware Xeon D 2796Te Firmware Xeon D 2798Nt Firmware Xeon D 2799 Firmware Xeon D 2745Nx Firmware Xeon D 2757Nx Firmware Xeon D 2777Nx Firmware Xeon D 2798Nx Firmware Fedoraproject
4.4
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 4.4 (MEDIUM). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged user to potentially enable information disclosure via local access. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-284. Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged user to potentially enable information disclosure via local access. Affected products include: Intel Microcode, Debian Debian Linux, Fedoraproject Fedora, Intel Xeon D-2745Nx Firmware, Intel Xeon D-2757Nx Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.4 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged user to potentially enable information disclosure via local access.

Threat Intelligence Overview

EPSS Score
0.3%
Top 77% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:o:intel:microcode:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-2745nx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-2757nx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-2777nx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-2798nx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1702_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1712tr_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1713nt_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1713nte_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1714_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1715ter_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1718t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1722ne_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1726_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_d-1732te_firmware:-:*:*:*:*:*:*:*
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