Security readout for executives and security teams
Plain-English summary
This flaw can let an unauthenticated remote attacker fill disk space on affected Cisco collaboration appliances by growing a system log file. If disk space is exhausted, collaboration, contact center, licensing, or messaging functions may behave abnormally and the appliance may become unstable.
Executive priority
Treat this as a service availability risk, not a data theft issue. Priority should be higher for emergency response, call center, unified communications, and licensing systems where downtime affects business operations or safety workflows.
Technical view
CVE-2017-6779 is a local file management issue in multiple Cisco VOS-based collaboration products and Prime Collaboration products. A system log file lacks a maximum size restriction. Crafted remote connection requests can enlarge that log until most available disk space is consumed, causing denial of service symptoms.
Likely exposure
Exposure is most likely where affected Cisco collaboration products accept remote connection requests, especially if reachable from untrusted networks. The bundle lists many products, but does not provide version-specific fixed or vulnerable ranges.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The described attack is unauthenticated and remote, but the available sources do not include public exploit status or exploitation prevalence.
Researcher notes
Key unknowns are version-specific exposure, fixed-release mapping, and exploit activity. The core weakness is missing log size enforcement leading to resource exhaustion. Avoid assuming compromise beyond denial of service without separate evidence.
Mitigation direction
- Review the Cisco advisory for affected releases and fixed software guidance.
- Prioritize externally reachable or business-critical Cisco collaboration appliances.
- Restrict untrusted network access to exposed collaboration services where operationally possible.
- Monitor disk utilization and log growth on affected appliances.
- Open Cisco support cases if version impact or upgrade path is unclear.
Validation and detection
- Inventory Cisco products named in the advisory across voice and collaboration environments.
- Confirm product versions against Cisco advisory guidance.
- Check whether appliances are reachable from untrusted networks.
- Review monitoring for abnormal disk utilization or log growth.
- Validate operational health after remediation or access-control changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-399: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-6779 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-diskdosCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Resource Management Errors
Resource Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.