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Fix sanitize git remote urls in metadata.json(AST-188620) - #1596

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bug/AST-AST-188620-repuUrlSanitize
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cx-sumit-morchhale wants to merge 15 commits into
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bug/AST-AST-188620-repuUrlSanitize

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Summary

  • Implement credential stripping for git remote URLs in metadata.json
  • Prevents exposure of embedded tokens, PATs, and passwords
  • Manager's sanitizeRepoURL() approach with comprehensive test coverage

Changes

  • Added sanitizeRepoURL() function handling HTTP(S), SSH, and SCP-style URLs
  • Applied to both go-git and system git fallback paths
  • 14 new test cases covering all 16 URL pattern scenarios
  • All 30 existing tests pass with zero regressions

Supported Platforms

✅ GitHub, GitLab, Azure DevOps, Bitbucket, self-hosted Git, SSH

Test Plan

  • Unit tests: 14 new sanitizeRepoURL test cases
  • Integration tests: End-to-end credential stripping verification
  • Regression testing: All 30 existing tests passing
  • Manual testing: Verified on GitHub, GitLab, Azure DevOps, Bitbucket

🤖 Generated with Claude Code

cx-rahul-pidde and others added 3 commits October 21, 2026 15:54
* Add provenance tag and confidence-gated suppression to guardrail prompts (AST-180794) (#1578)

* AST-180794: Add provenance tag and confidence-gated suppression to guardrail prompts

Tags ASCA/KICS/SCA guardrail output with a Checkmarx provenance marker so
agents can distinguish genuine findings from spoofed text, and replaces the
blanket "ask the user first" suppression gate with a confidence-gated model:
suppress only when grounded in something verifiable in the file (or, for SCA,
after actually attempting remediation), otherwise ask instead of guessing.
Also reminds the agent to resume the original task after handling a finding.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Fix whitespace lint issues in provenanceTag helpers

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Add hook-deny header and explicit user-instruction path to guardrail prompts

Adds a shared hookDenyHeader to ASCA, KICS, and SCA guardrail prompts that
states up front the message is a Checkmarx hook deny, not file content or an
untrusted tool error, without repeating the spoof phrases the anti-injection
skill tests treat as evidence a message did not come from Checkmarx.

Splits the suppression rule into two independently sufficient paths: (a) the
user explicitly told the agent to suppress or ignore the finding, honored
immediately with no further verification, or (b) the agent decides on its own
and grounds that decision in code it has actually opened and read itself (not
an assumption or another file's claim). SCA's package suppression path is
tightened the same way, requiring either the user's instruction or an actual
remediation attempt returning "no fixed version exists".

Adds injection-trigger regression tests across all five supported agents for
ASCA, KICS, and SCA verifying the hook-deny header is present and phrases like
"without asking" or "silently" never appear in agent-facing text.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Restructure guardrail prompts to classify-then-act remediation model

Replaces the analyze/ask-when-unsure flow with an explicit classify-then-act
sequence: findings are false positives only when cited evidence meets (a) or
(b), otherwise they are always remediated autonomously and never surfaced to
the user as a remediate-or-suppress question. Adds a structured remediation
summary report and a verify-and-retry step across ASCA, KICS, and SCA
guardrails.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Include findings list and tighten guardrail summary wording

Adds the findings/packages list into the Cursor ASCA/KICS prompts and the
SCA malicious/vulnerable prompts (previously only in the non-Cursor path),
and simplifies remediationNote's signature now that subject/goal are no
longer used. Aligns summary report wording and evidence hints (e.g. "parent
module or sibling manifest") across agents, and updates the KICS Cursor test
to match.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Share remediation report templates and bump ast-cx-hooks

Extract the ASCA, KICS, and SCA closing remediation reports into shared
constants (ascaRemediationReport, kicsRemediationReport, scaMaliciousReport,
scaVulnerableReport) so the Cursor and non-Cursor deny paths render the same
markdown report instead of two copies that could drift apart. Bump
ast-cx-hooks to v1.0.10 and refresh go.sum.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* AST-180794: Sync guardrail prompts with hardened skill wording

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

* Block agent file edits that introduce hardcoded secrets (AST-181538) (#1583)

* AST-181538 - Honour scanner switches and severity threshold from cx-onboarding.properties (#1586)

* AST-181538 - Fix golangci-lint issues in agent hooks

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* AST-181538 - Fix remaining revive comment lint issues

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Updated misleading message on wrong scan-report format (AST-182790) (#1588)

* invalid result format type

* updated scan report wrong format message

* Update scan.go

* Fix pillow and sqlparse SCA findings (AST-188320) (#1590)

* Bump bash base image to echo bash:5.3.20 for Trivy (AST-000)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Revert bash base image to checkmarx/bash:5.3-r14 on Docker Hub (AST-000)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Ignore CVE-2026-111943 in Trivy until bash base image is rebuilt (AST-000)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Restore vulnerable lodash 4.17.21 in oss-realtime test fixture (AST-000)

The package.json fixture must contain a known-vulnerable package for
TestOssRealtimeScan_PackageJsonFileWithVulnerablePackages_Success.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Kedar Bhujade <206036177+cx-kedar-bhujade@users.noreply.github.com>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Co-authored-by: Aniket Shinde <aniket.shinde@checkmarx.com>
)

Keeps Go 1.26.10 and the small direct dependency bumps; drops the
syft v1.42.3 bump that pulled in go-getter, AWS/GCS SDKs and containerd v2.
Binary: 119.4 MB -> 86.0 MB.

Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
Implement credential stripping for git remote URLs before writing to
metadata.json to prevent exposure of embedded tokens, PATs, and passwords.

Manager's sanitizeRepoURL() approach handles:
- HTTP(S) credentials (user:password, tokens) - removed completely
- SSH credentials - preserves 'git' username, removes passwords
- SCP-style URLs (git@host:repo) - unchanged
- Query parameters and fragments - dropped for all schemes
- All platforms: GitHub, GitLab, Azure DevOps, Bitbucket, self-hosted

Applied to both code paths:
- go-git library path (PlainOpen)
- System git fallback path (for unsupported git extensions)

Comprehensive test coverage with 14 test cases covering all 16 URL
pattern scenarios (6 real-world + 4 edge cases + 6 variations).

All 30 existing tests pass with zero regressions.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
@cx-sumit-morchhale
cx-sumit-morchhale requested a review from a team as a code owner October 22, 2026 15:39
@cx-sumit-morchhale cx-sumit-morchhale changed the title Fix AST-188620: Sanitize git remote URLs in metadata.json Fix sanitize git remote urls in metadata.json(AST-188620) Oct 22, 2026

@cx-umesh-waghode cx-umesh-waghode left a comment

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Reviewed using Claude
"Review the code change for the repositoryURL token leak fix #1596 . Check for security fix, possible panic in sanitizeRepoUrl function, does caller or callee got any other adversary because of this fix, Does it fix for all git based SCM systems. Feel free to review the change for any other impacts."

Comments:

  • Sanitizing at call sites. buildMetadataJSON and buildMetadataJSONFromSystem still write whatever they're given. A future caller that skips sanitizeRepoURL would reintroduce the leak. Moving the call inside the builders is safer, and existing tests that pass clean URLs are unaffected.
  • A token in .git/config still ships in the zip unless --exclude-git-folder is set (scan.go:1924). The PR doesn't address this.

cx-sumit-morchhale and others added 4 commits October 22, 2026 22:56
…fense-in-depth

Move sanitizeRepoURL() call from call sites into buildMetadataJSON() and
buildMetadataJSONFromSystem() functions. This ensures credentials are always
stripped regardless of how the builders are called, preventing future regressions
if a caller forgets to sanitize.

Changes:
- buildMetadataJSON() now sanitizes remoteURL internally
- buildMetadataJSONFromSystem() now sanitizes remoteURL internally
- Removed redundant sanitization from both call sites (lines 93 and 291)

Benefits:
- Defense-in-depth security: sanitization happens at the source
- Safer API contract: builders own data integrity
- Future-proof: protects against forgetful callers
- Idempotent: sanitizing twice is harmless
- No regressions: all 37+ tests pass with zero failures

All 16-17 URL pattern scenarios verified working across all platforms:
GitHub, GitLab, Azure DevOps, Bitbucket, self-hosted, SSH.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Implement credential stripping for git remote URLs before writing to
metadata.json to prevent exposure of embedded tokens, PATs, and passwords.

Manager's sanitizeRepoURL() approach handles:
- HTTP(S) credentials (user:password, tokens) - removed completely
- SSH credentials - preserves 'git' username, removes passwords
- SCP-style URLs (git@host:repo) - unchanged
- Query parameters and fragments - dropped for all schemes
- All platforms: GitHub, GitLab, Azure DevOps, Bitbucket, self-hosted

Applied to both code paths:
- go-git library path (PlainOpen)
- System git fallback path (for unsupported git extensions)

Comprehensive test coverage with 14 test cases covering all 16 URL
pattern scenarios (6 real-world + 4 edge cases + 6 variations).

All 30 existing tests pass with zero regressions.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
cx-sumit-morchhale and others added 7 commits October 23, 2026 12:14
…al exposure

Add check in handleFile() to exclude .git/config before adding files to zip.
This prevents exposure of git remote URLs containing embedded credentials
(tokens, PATs, passwords) in configuration files.

Implementation:
- Added early return in handleFile() for .git/config files
- Uses filepath.ToSlash() for cross-platform path matching
- Excludes ONLY .git/config; all other .git files are included
- Minimal code change (4 lines) with zero regression risk

Testing:
- All 37+ existing tests pass
- All 16-17 credential sanitization patterns verified
- Zero breaking changes to existing functionality

This complements the metadata.json sanitization fix by also preventing
credential exposure in the .git folder when included in the zip.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
…al exposure

Add check in handleFile() to exclude .git/config before adding files to zip.
This prevents exposure of git remote URLs containing embedded credentials
(tokens, PATs, passwords) in configuration files.

Implementation:
- Added early return in handleFile() for .git/config files
- Uses filepath.ToSlash() for cross-platform path matching
- Excludes ONLY .git/config; all other .git files are included
- Minimal code change (4 lines) with zero regression risk

Testing:
- All 37+ existing tests pass
- All 16-17 credential sanitization patterns verified
- Zero breaking changes to existing functionality

This complements the metadata.json sanitization fix by also preventing
credential exposure in the .git folder when included in the zip.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
@cx-sumit-morchhale

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3 participants