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CVE-2018-10657
Vulnerability in matrix-synapse (CVE-2018-10657)
Summary
vulnerability in matrix-synapse (CVE-2018-10657). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `0.28.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2018-10657** has been found in matrix-synapse.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade matrix-synapse to **0.28.1** or later.
If unsure, ask your IT team or search "matrix-synapse CVE-2018-10657" on the vendor's site.
CVE-2018-10657 (matrix-synapse) — CWE-20 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `0.28.1` — 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-20) exists in matrix-synapse.
📍 Affected scope
matrix-synapse — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **0.28.1**.
🛡️ 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 request patterns matching this CVE's known IOCs. Run `grep -r 'matrix-synapse' .` 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
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1Identify exposure identify
grep -r 'matrix-synapse' . | 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 `matrix-synapse` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade matrix-synapse to 0.28.1ステージング環境で 0.28.1 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。
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7Post-deployment verification verify
Confirm patched version is live in production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
PyPI
matrix-synapse
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.28.1"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2018-10657
- advisory https://github.com/advisories/GHSA-vmcc-4p4x-x7wg
- advisory https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/
- package https://github.com/matrix-org/synapse
- package https://pypi.org/project/matrix-synapse
- patch https://github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb
- web https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI/edit#heading=h.fj95ykuss7s1
- web https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1