CWE-527: Exposure of Version-Control Repository to an… | Glexia
CWE-527 (Exposure of Version-Control Repository to an Unauthorized Control Sphere) weakness overview with consequences, detection methods, mitigations, related…
Glexia's Take · Automated analysis
CWE-527: Exposure of Version-Control Repository to an Unauthorized Control Sphere
Exposure of Version-Control Repository to an Unauthorized Control Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Executive Impact
- Confidentiality: Read Application Data,Read Files or Directories
Developer Pattern
CWE-527 is the kind of defect developers can usually prevent with explicit validation, safer framework defaults, and tests that exercise hostile input or unsafe state transitions.
Automation confidence
high confidence from CWE-527, 4.20.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Official CWE Definition
CWE-527: Exposure of Version-Control Repository to an Unauthorized Control Sphere
The product stores a CVS, git, or other repository in a directory, archive, or other resource that is stored, transferred, or otherwise made accessible to unauthorized actors.
Version control repositories such as CVS or git store version-specific metadata and other details within subdirectories. If these subdirectories are stored on a web server or added to an archive, then these could be used by an attacker. This information may include usernames, filenames, path root, IP addresses, and detailed "diff" data about how files have been changed - which could reveal source code snippets that were never intended to be made public.
Developer And Remediation Guidance
How teams prevent and detect this weakness
Causes
- Missing validation
- Unsafe defaults
- Insufficient authorization or memory-safety invariant
Remediation
- Operation,Distribution,System Configuration: Recommendations include removing any CVS directories and repositories from the production server, disabling the use of remote CVS repositories, and ensuring that the latest CVS patches and version updates have been performed.
Detection
- Code review
- SAST
- DAST
- Focused regression tests
Mappings
Related CVEs, CWEs, and ATT&CK context
ATT&CK Relevance
ATT&CK relevance is shown only when reviewed or responsibly inferred.