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CWE-1323 Base Draft
Improper Management of Sensitive Trace Data
This vulnerability occurs when sensitive trace data from a System-on-Chip (SoC), such as information from CPUs or cryptographic modules, is stored in unsecured memory or transmitted to unauthorized…
Definition
What is CWE-1323?
This vulnerability occurs when sensitive trace data from a System-on-Chip (SoC), such as information from CPUs or cryptographic modules, is stored in unsecured memory or transmitted to unauthorized debuggers, potentially exposing confidential information.
Modern System-on-Chip (SoC) designs incorporate specialized tracing hardware to monitor internal signals in real-time. This capability is essential for debugging and validating complex hardware and software interactions. However, these traces often capture highly sensitive data from security-critical components like cryptographic engines and processor cores.
If this collected trace data isn't properly secured—either by storing it in unprotected memory or failing to tag it with security metadata—it becomes accessible to unauthorized agents. An untrusted software debugger could read unprotected memory to extract secrets, while a hardware debugger might access improperly tagged traces, leading to the exposure of confidential information and system compromise.
Auswirkungen in der Praxis
Real-world CVEs caused by CWE-1323
Bisher sind in MITREs Katalog keine öffentlichen CVE-Referenzen mit dieser CWE verknüpft.
Wie Angreifer es ausnutzen
Angreiferpfad Schritt für Schritt
- 1
Identifiziere einen Codepfad, der nicht vertrauenswürdige Eingaben ohne Validierung verarbeitet.
- 2
Erzeuge eine Payload, die das unsichere Verhalten auslöst — Injection, Traversal, Overflow oder Logik-Missbrauch.
- 3
Liefere die Payload über einen normalen Request aus und beobachte die Reaktion der Anwendung.
- 4
Iteriere, bis die Antwort Daten preisgibt, Angreifer-Code ausführt oder Berechtigungen eskaliert.
Verwundbares Codebeispiel
Vulnerable Other
In a SoC, traces generated from sources include security-sensitive IP blocks such as CPU (with tracing information such as instructions executed and memory operands), on-chip fabric (e.g., memory-transfer signals, transaction type and destination, and on-chip-firewall-error signals), power-management IP blocks (e.g., clock- and power-gating signals), and cryptographic coprocessors (e.g., cryptographic keys and intermediate values of crypto operations), among other non-security-sensitive IP blocks including timers and other functional blocks. The collected traces are then forwarded to the debug and trace interface used by the external hardware debugger.
The traces do not have any privilege level attached to them. All collected traces can be viewed by any debugger (i.e., SoC designer, OEM debugger, or end user). Sicheres Codebeispiel
Secure Other
Some of the traces are SoC-design-house secrets, while some are OEM secrets. Few are end-user secrets and the rest are not security-sensitive. Tag all traces with the appropriate, privilege level at the source. The bits indicating the privilege level must be immutable in their transit from trace source to the final, trace sink. Debugger privilege level must be checked before providing access to traces. What changed: the unsafe sink is replaced (or the input is validated/escaped) so the same payload no longer triggers the weakness.
Präventions-Checkliste
How to prevent CWE-1323
- Implementation Tag traces to indicate owner and debugging privilege level (designer, OEM, or end user) needed to access that trace.
Erkennungssignale
How to detect CWE-1323
Führe dynamische Application-Security-Tests gegen den Live-Endpoint aus.
Beobachte Runtime-Logs auf ungewöhnliche Exception-Traces, fehlerhafte Eingaben oder Versuche, Autorisierung zu umgehen.
Code Review: Markiere jeden neuen Code, der Eingaben von dieser Oberfläche ohne validierte Framework-Helper verarbeitet.
Plexicus erkennt CWE-1323 automatisch und öffnet in unter 60 Sekunden einen Fix-PR.
Codex Remedium scannt jeden Commit, identifiziert genau diese Schwachstelle und liefert einen reviewer-ready Pull Request mit dem Patch. Keine Tickets. Keine Hand-offs.
Häufig gestellte Fragen Was ist CWE-1323?
Wie gravierend ist CWE-1323?
Welche Sprachen oder Plattformen sind von CWE-1323 betroffen?
Wie kann ich CWE-1323 verhindern?
Wie erkennt und behebt Plexicus CWE-1323?
Wo erfahre ich mehr über CWE-1323?
Frequently asked questions
Was ist CWE-1323?
This vulnerability occurs when sensitive trace data from a System-on-Chip (SoC), such as information from CPUs or cryptographic modules, is stored in unsecured memory or transmitted to unauthorized debuggers, potentially exposing confidential information.
Wie gravierend ist CWE-1323?
MITRE hat für diese Schwachstelle keine Exploit-Wahrscheinlichkeit veröffentlicht. Behandle sie als mittlere Auswirkung, bis dein Threat Model anderes belegt.
Welche Sprachen oder Plattformen sind von CWE-1323 betroffen?
MITRE lists the following affected platforms: Not OS-Specific, Not Architecture-Specific, System on Chip.
Wie kann ich CWE-1323 verhindern?
Tag traces to indicate owner and debugging privilege level (designer, OEM, or end user) needed to access that trace.
Wie erkennt und behebt Plexicus CWE-1323?
Die SAST-Engine von Plexicus erkennt die Datenfluss-Signatur von CWE-1323 bei jedem Commit. Bei einem Treffer öffnet unser Codex-Remedium-Agent einen Fix-PR mit korrigiertem Code, Tests und einer einzeiligen Zusammenfassung für den Reviewer.
Wo erfahre ich mehr über CWE-1323?
MITRE veröffentlicht die kanonische Definition unter https://cwe.mitre.org/data/definitions/1323.html. Für ergänzende Hinweise kannst du auch die OWASP- und NIST-Dokumentation heranziehen.
Verwandte Schwachstellen
Weaknesses related to CWE-1323
CWE-284 Parent
Improper Access Control
The software fails to properly limit who can access a resource, allowing unauthorized users or systems to interact with it.
CWE-1191 Sibling
On-Chip Debug and Test Interface With Improper Access Control
This vulnerability occurs when a hardware chip's debug or test interface (like JTAG) lacks proper access controls. Without correct…
CWE-1220 Sibling
Insufficient Granularity of Access Control
This vulnerability occurs when a system's access controls are too broad, allowing unauthorized users or processes to read or modify…
CWE-1224 Sibling
Improper Restriction of Write-Once Bit Fields
This vulnerability occurs when hardware write-once protection mechanisms, often called 'sticky bits,' are incorrectly implemented,…
CWE-1231 Sibling
Improper Prevention of Lock Bit Modification
This vulnerability occurs when hardware or firmware uses a lock bit to protect critical system registers or memory regions, but fails to…
CWE-1233 Sibling
Security-Sensitive Hardware Controls with Missing Lock Bit Protection
This vulnerability occurs when a hardware device uses a lock bit to protect critical configuration registers, but the lock fails to…
CWE-1252 Sibling
CPU Hardware Not Configured to Support Exclusivity of Write and Execute Operations
This vulnerability occurs when a CPU's hardware is not set up to enforce a strict separation between writing data to memory and executing…
CWE-1257 Sibling
Improper Access Control Applied to Mirrored or Aliased Memory Regions
This vulnerability occurs when a hardware design maps the same physical memory to multiple addresses (aliasing or mirroring) but fails to…
CWE-1259 Sibling
Improper Restriction of Security Token Assignment
This vulnerability occurs when a System-on-a-Chip (SoC) fails to properly secure its Security Token mechanism. These tokens control which…
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