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CVE-2017-7549
medium
CVSS 6.4
Vulnerability in instack-undercloud (CVE-2017-7549)
Summary
vulnerability in instack-undercloud (CVE-2017-7549). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2017-7549** has been found in instack-undercloud.
Confidential information can be exposed externally. CVSS score: 6.4/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "instack-undercloud CVE-2017-7549" on the vendor's site.
CVE-2017-7549 (instack-undercloud) — CWE-377 / CVSS v3 6.4
Attack vector: local / no user interaction
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-377) exists in instack-undercloud.
📍 Affected scope
instack-undercloud — .
🔥 Severity
Severity: Medium (CVSS 6.4/10). Confidential information can be exposed externally
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'instack-undercloud' .` 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 'instack-undercloud' . | 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 `instack-undercloud` 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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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
instack-undercloud
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"7.2.0"}]}]
PyPI
instack
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"7.2.0"},{"last_affected":"6.1.0"},{"last_affected":"5.3.0"}]}]
pip
instack-undercloud
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2017-7549
- web http://www.securityfocus.com/bid/100407
- web https://access.redhat.com/errata/RHSA-2017:2557
- web https://access.redhat.com/errata/RHSA-2017:2649
- web https://access.redhat.com/errata/RHSA-2017:2687
- web https://access.redhat.com/errata/RHSA-2017:2693
- web https://access.redhat.com/errata/RHSA-2017:2726
- web https://bugzilla.redhat.com/show_bug.cgi?id=1477403
- web https://access.redhat.com/security/cve/CVE-2017-7549
- web https://opendev.org/openstack/instack-undercloud
- web https://web.archive.org/web/20170907040549/http://www.securityfocus.com/bid/100407
- web https://github.com/pypa/advisory-database/tree/main/vulns/instack/PYSEC-2017-152.yaml
- web https://github.com/advisories/GHSA-53wm-97p6-582f