← Back
GHSA-9857-6mw7-fq2m
Vulnerability in gix-transport (GHSA-9857-6mw7-fq2m)
Summary
vulnerability in gix-transport (GHSA-9857-6mw7-fq2m). Confidential information can be exposed externally. Exploitable via `GET /info/refs`. Mitigation: upgrade to `0.56.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **GHSA-9857-6mw7-fq2m** has been found in gix-transport.
Attackers can target a specific entry point like `GET /info/refs` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade gix-transport to **0.56.0** or later.
If unsure, ask your IT team or search "gix-transport GHSA-9857-6mw7-fq2m" on the vendor's site.
GHSA-9857-6mw7-fq2m (gix-transport) — CWE-522 /
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: GET /info/refs / POST /git-upload-pack / GET /repo.git/info/refs / POST /repo.git/git-upload-pack
Patched: `0.56.0` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-522) exists in gix-transport. Attackers reach the vulnerable code path via `GET /info/refs` without authentication.
📍 Affected scope
gix-transport — . Attack surface: GET /info/refs / POST /git-upload-pack / GET /repo.git/info/refs / POST /repo.git/git-upload-pack.
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **0.56.0**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual `GET /info/refs` requests with malformed payloads or SQL meta-characters. Run `grep -r 'gix-transport' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'gix-transport' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `gix-transport` を grep し、稼働しているサービス・バージョンを把握する。
-
3Hunt for indicators of compromise detect
grep 'GET /info/refs' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `GET /info/refs` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。
-
6Apply patch patch
Upgrade gix-transport to 0.56.0ステージング環境で 0.56.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-deployment verification verify
Replay attack against GET /info/refs on staging to confirm patch closes the vectorパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
crates.io
gix-transport
[{"type":"SEMVER","events":[{"introduced":"0.25.4"},{"fixed":"0.56.0"}]}]