← Back
CVE-2017-16544
high
CVSS 8.8
Code Injection in c (CVE-2017-16544)
Summary
code injection in c (CVE-2017-16544). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2017-16544** has been found in c.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2017-16544" on the vendor's site.
CVE-2017-16544 (c) — CWE-94 / CVSS v3 8.8
Attack vector: remote (network-reachable) / 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
**arbitrary code execution** (CWE-94) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover
🔧 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 'c' .` 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 'c' . | 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 `c` を grep し、稼働しているサービス・バージョンを把握する。
-
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。
References
- advisory http://www.vmware.com/security/advisories/VMSA-2019-0013.html
- advisory https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
- advisory https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html
- advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-240-01
- advisory https://usn.ubuntu.com/3935-1/
- advisory https://www.twistlock.com/2017/11/20/cve-2017-16544-busybox-autocompletion-vulnerability/
- patch https://git.busybox.net/busybox/commit/?id=c3797d40a1c57352192c6106cc0f435e7d9c11e8
- report http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
- report http://packetstormsecurity.com/files/154536/VMware-Security-Advisory-2019-0013.html
- report http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html
- report http://seclists.org/fulldisclosure/2019/Jun/18
- report http://seclists.org/fulldisclosure/2019/Sep/7
- report http://seclists.org/fulldisclosure/2020/Aug/20
- report http://seclists.org/fulldisclosure/2020/Mar/15
- report http://seclists.org/fulldisclosure/2020/Sep/6
- report http://seclists.org/fulldisclosure/2021/Aug/21
- report http://seclists.org/fulldisclosure/2021/Jan/39
- report http://seclists.org/fulldisclosure/2022/Jun/36
- report https://seclists.org/bugtraq/2019/Jun/14
- report https://seclists.org/bugtraq/2019/Sep/7