CVE intelligence and bounded remediation
CVE-2017-12305 — Cisco Ip Phone 8800 Series Firmware security vulnerability
A vulnerability in the debug interface of Cisco IP Phone 8800 series could allow an authenticated, local attacker to execute arbitrary commands, aka Debug Shell Command Injection. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting additional command input to the affected parameter in the debug shell. Cisco Bug IDs: CSCvf80034.
- Severity
- High
- CVSS
- 7.2 (2.0)
- Published
- 2017-11-16
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-77, CWE-78
Affected products
- cisco / ip_phone_8800_series_firmware
Matched remediation archetype
Command, code, expression, and template injection
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
- Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
- Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.
Remediate safely
- Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
- Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
- Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.
Authoritative sources
Complete CVE record and remediation plan
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