CWE-1295: Debug Messages Revealing Unnecessary Information

Extended Description

Debug messages are messages that help troubleshoot an issue by revealing the internal state of the system. For example, debug data in design can be exposed through internal memory array dumps or boot logs through interfaces like UART via TAP commands, scan chain, etc. Thus, the more information contained in a debug message, the easier it is to debug. However, there is also the risk of revealing information that could help an attacker either decipher a vulnerability, and/or gain a better understanding of the system. Thus, this extra information could lower the "security by obscurity" factor. While "security by obscurity" alone is insufficient, it can help as a part of "Defense-in-depth".

Source-backed guidance

Additional facts reviewed against primary or authoritative security sources.

Verify controls for CWE-1295 with SSDF evidence

Use NIST SSDF verification and vulnerability-response practices to detect CWE-1295, Debug Messages Revealing Unnecessary Information, throughout the product lifecycle. Derive review questions, static or dynamic checks, and negative tests from the CWE's causal behavior; define the components and lifecycle stages each check covers; and retain findings with enough evidence to distinguish the root cause from symptoms and impacts. Track escapes and false negatives, then improve the verification plan after every confirmed occurrence.

NIST SP 800-218 Secure Software Development Framework — National Institute of Standards and Technology

Address Debug Messages Revealing Unnecessary Information during Implementation

MITRE associates mitigation with Implementation; documented detection approaches include Automated Static Analysis; recorded impacts include Read Memory, Bypass Protection Mechanism, Gain Privileges or Assume Identity, and Varies by Context. Use these source-defined anchors to turn CWE-1295 into implementation, review, and verification checks for the affected component.

CWE-1295: Debug Messages Revealing Unnecessary Information — MITRE CWE

Triage CWE-1295 against known exploitation evidence

Use CISA's Known Exploited Vulnerabilities catalog to test whether a vulnerability mapped to CWE-1295, Debug Messages Revealing Unnecessary Information, has evidence of exploitation in the wild. Confirm the CVE-to-CWE root-cause mapping independently before attaching the example, then capture the affected product, required action, and remediation deadline. A missing KEV match is not evidence that the weakness is unexploited, and a KEV entry must not be generalized to every occurrence of this CWE.

Known Exploited Vulnerabilities Catalog — Cybersecurity and Infrastructure Security Agency

Apply precise root-cause mapping to CWE-1295

Apply MITRE's full root-cause mapping guidance when using CWE-1295, Debug Messages Revealing Unnecessary Information. Separate weakness language from attacker prerequisites and technical impact, check the entry's abstraction and vulnerability-mapping notes, and prefer the most specific Base or Variant supported by the evidence. Record the rejected alternatives and require an independent review before the mapping is used for remediation trends or program metrics.

CVE to CWE Root Cause Mapping Guidance — MITRE CWE

Validate CWE-1295 with root-cause mapping checks

Apply MITRE's root-cause mapping quick tips to CWE-1295, Debug Messages Revealing Unnecessary Information. Confirm the finding describes the causal weakness rather than an impact or attack pattern, compare the abstraction and mapping notes with plausible alternatives, and have a second reviewer challenge the selection. Preserve the evidence and reasoning so recurring defects can be measured against one consistent identifier.

CVE to CWE Root Cause Mapping Quick Tips — MITRE CWE

Frequently Asked Questions

What is CWE-1295: Debug Messages Revealing Unnecessary Information?+

CWE-1295: Debug Messages Revealing Unnecessary Information is a Common Weakness Enumeration (CWE) entry maintained by MITRE. The product fails to adequately prevent the revealing of unnecessary and potentially sensitive system information within debugging messages. Debug messages are messages that help troubleshoot an issue by revealing the internal state of the system. For example, debug data in design can be exposed through internal memory array dumps or boot logs through interfaces like UART via TAP commands, scan chain, etc. Thus, the more information contained in a debug message, the easier it is to debug. However, there is also the risk of revealing information that could help an attacker either decipher a vulnerability, and/or gain a better understanding of the system. Thus, this extra information could lower the "security by obscurity" factor. While "security by obscurity" alone is insufficient, it can help as a part of "Defense-in-depth".

What are the security consequences of Debug Messages Revealing Unnecessary Information?+

If exploited, CWE-1295 (Debug Messages Revealing Unnecessary Information) it can compromise Confidentiality, Integrity, Availability, Access Control, Accountability and Authentication, leading to outcomes such as Read Memory, Bypass Protection Mechanism, Gain Privileges or Assume Identity and Varies by Context.

How do you prevent or mitigate Debug Messages Revealing Unnecessary Information?+

Recommended mitigations for CWE-1295 include: Ensure that a debug message does not reveal any unnecessary information during the debug process for the intended response.

Which programming languages are affected by Debug Messages Revealing Unnecessary Information?+

CWE-1295 commonly affects Not Language-Specific. Note that weaknesses are often language-agnostic patterns, so secure coding practices apply broadly.

What are real-world examples of Debug Messages Revealing Unnecessary Information?+

MITRE documents real CVEs mapped to CWE-1295, including CVE-2022-34364, CVE-2021-25476, CVE-2020-24491 and CVE-2017-18326. You can look up the full details of each CVE, including CVSS scores and remediation guidance, on our CVE Lookup tool.

What is the difference between a CWE and a CVE?+

A CWE (Common Weakness Enumeration) like CWE-1295 describes a category of software weakness — the underlying flaw type. A CVE (Common Vulnerabilities and Exposures) identifies a specific, real-world vulnerability in a particular product. In short, a CWE is the kind of mistake, and a CVE is an instance of that mistake being found in software.

CWE-1295: Debug Messages Revealing Unnecessary Information

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Code Examples & CVEs

Observed CVE Examples (4)

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