CyberSecBulletin
CVE-2023-31276NVD status: Deferred

Intel(R) Server Board S2600WF, Intel(R) Server…: Heap-based Buffer Overflow

Published Updated By the CyberSecBulletin desk

CVE-2023-31276 is a high-severity heap-based buffer overflow vulnerability in Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. Affected Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP versions: See references. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.24% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP you run against the affected versions below, and install the vendor's latest release.

Affected products and versions

VendorProductAffected versionsFixed in
Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNPIntel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNPSee referencesNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (intel.com).

Scoring systemScoreSeverityScored by
CVSS 4.08.4HighCNA (intel.com)
CVSS 3.18.2HighCNA (intel.com)

Official description

Heap-based buffer overflow in BMC Firmware for the Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, before version 02.01.0017 and Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP before version R01.01.0009 may allow a privileged user to enable escalation of privilege via local access.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Heap-based Buffer Overflow

The product writes past the end of a buffer that was allocated on the heap.

How developers prevent this class of flaw

  • Pre-design: Use a language or compiler that performs automatic bounds checking.
  • Use an abstraction library to abstract away risky APIs. Not a complete solution.
  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.

More Heap-based Buffer Overflow vulnerabilities (CWE-122)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP

All Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP vulnerabilities

Recent Heap-based Buffer Overflow vulnerabilities

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