PCViewer vt1000 contains a directory traversal vulnerability that allows unauthenticated attackers to read arbitrary files by submitting relative path sequences in GET requests. Attackers can use path traversal sequences ../../../../../../../../../../../../etc/passwd to access sensitive system files outside the intended directory.
Casky was already ahead
This CVE exploits attack patterns that Casky's 331matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.
CVE-2018-25365 exploits a directory traversal vulnerability in PCViewer vt1000 that enables unauthenticated attackers to read arbitrary files from affected systems. By crafting malicious GET requests with path traversal sequences (such as ../../../../../../../../../../../../etc/passwd), attackers bypass intended directory restrictions and access sensitive system files without authentication. This vulnerability affects any organization deploying PCViewer vt1000 and poses significant risk because it requires no credentials, no user interaction, and exposes critical system files that could contain configuration data, credentials, or other sensitive information used in subsequent attacks.
Casky's 331 matched skills use Claude's extended reasoning to detect the attack patterns underlying this vulnerability across the MITRE ATT&CK framework. Practitioners leveraging Casky would identify exploitation attempts mapping to TA0001 (Reconnaissance) and TA0007 (Discovery) techniques—attackers probe for file paths and enumerate system information through repeated directory traversal requests. The platform would surface detection insights around suspicious GET request patterns containing encoded or literal traversal sequences, anomalous file access attempts from unauthenticated sessions, and access logs showing requests targeting common sensitive files like /etc/passwd, /etc/shadow, or configuration directories. Security teams gain visibility into both the initial reconnaissance probing and the actual file enumeration phase, enabling faster incident response and hardening of PCViewer deployments.
Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →
These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2018-25365.
Casky has 331 skills that investigate the attack patterns behind CVE-2018-25365. Run one and get CVSS-scored findings in 3 minutes.
Run the skill that detects this →analyzing-office365-audit-logs-for-compromise
cloud security · low
analyzing-persistence-mechanisms-in-linux
threat hunting · low
analyzing-powershell-empire-artifacts
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auditing-aws-s3-bucket-permissions
cloud security · low
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cloud security · low
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red teaming · high
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threat hunting · low
detecting-misconfigured-azure-storage
cloud security · low
detecting-mobile-malware-behavior
mobile security · low
detecting-modbus-command-injection-attacks
ot ics security · medium
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detecting-oauth-token-theft
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detecting-pass-the-hash-attacks
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threat hunting · low
detecting-process-hollowing-technique
threat hunting · low
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detecting-s3-data-exfiltration-attempts
cloud security · low
detecting-serverless-function-injection
cloud security · low
detecting-service-account-abuse
threat hunting · low
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api security · medium
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ot ics security · medium
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detecting-suspicious-powershell-execution
threat hunting · low
detecting-t1003-credential-dumping-with-edr
threat hunting · low
detecting-t1055-process-injection-with-sysmon
threat hunting · low
detecting-t1548-abuse-elevation-control-mechanism
threat hunting · low
detecting-wmi-persistence
threat hunting · low
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red teaming · high
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api security · medium
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api security · medium
exploiting-broken-link-hijacking
web application security · medium
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red teaming · high
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mobile security · low
exploiting-excessive-data-exposure-in-api
api security · medium
exploiting-http-request-smuggling
web application security · medium
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web application security · medium
exploiting-insecure-data-storage-in-mobile
mobile security · low
exploiting-insecure-deserialization
web application security · medium
exploiting-jwt-algorithm-confusion-attack
api security · medium
exploiting-kerberoasting-with-impacket
red teaming · high
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web application security · medium
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red teaming · high
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red teaming · high
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web application security · medium
exploiting-oauth-misconfiguration
web application security · medium
exploiting-prototype-pollution-in-javascript
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web application security · medium
exploiting-server-side-request-forgery
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threat hunting · low
hunting-for-registry-run-key-persistence
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hunting-for-scheduled-task-persistence
threat hunting · low
hunting-for-shadow-copy-deletion
threat hunting · low
hunting-for-spearphishing-indicators
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hunting-for-suspicious-scheduled-tasks
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hunting-for-t1098-account-manipulation
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hunting-for-unusual-network-connections
threat hunting · low
hunting-for-unusual-service-installations
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devsecops · low
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cloud security · low
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cloud security · low
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vulnerability management · medium
implementing-cloud-waf-rules
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implementing-code-signing-for-artifacts
devsecops · low
implementing-conduit-security-for-ot-remote-access
ot ics security · medium
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ot ics security · medium
implementing-email-sandboxing-with-proofpoint
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devsecops · low
implementing-gcp-binary-authorization
cloud security · low
implementing-gcp-organization-policy-constraints
cloud security · low
implementing-gcp-vpc-firewall-rules
cloud security · low
implementing-github-advanced-security-for-code-scanning
devsecops · low
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phishing defense · medium
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ot ics security · medium
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ot ics security · medium
implementing-infrastructure-as-code-security-scanning
devsecops · low
implementing-mimecast-targeted-attack-protection
phishing defense · medium
implementing-mobile-application-management
mobile security · low
implementing-nerc-cip-compliance-controls
ot ics security · medium
implementing-network-segmentation-for-ot
ot ics security · medium
implementing-ot-incident-response-playbook
ot ics security · medium
implementing-ot-network-traffic-analysis-with-nozomi
ot ics security · medium
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ot ics security · medium
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devsecops · low
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phishing defense · medium
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ot ics security · medium
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vulnerability management · medium
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devsecops · low
implementing-secrets-management-with-vault
cloud security · low
implementing-secrets-scanning-in-ci-cd
devsecops · low
implementing-semgrep-for-custom-sast-rules
devsecops · low
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vulnerability management · medium
implementing-vulnerability-remediation-sla
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web application security · medium
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cloud security · low
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cloud security · low
integrating-dast-with-owasp-zap-in-pipeline
devsecops · low
integrating-sast-into-github-actions-pipeline
devsecops · low
intercepting-mobile-traffic-with-burpsuite
mobile security · low
managing-cloud-identity-with-okta
cloud security · low
performing-active-directory-bloodhound-analysis
red teaming · high
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phishing defense · medium
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cloud security · low
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devsecops · low
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phishing defense · medium
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api security · medium
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web application security · medium
performing-http-parameter-pollution-attack
web application security · medium
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ot ics security · medium
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red teaming · high
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penetration testing · medium
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ot ics security · medium
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ot ics security · medium
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ot ics security · medium
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web application security · medium
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api security · medium
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performing-threat-modeling-with-owasp-threat-dragon
devsecops · low
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penetration testing · medium
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performing-web-application-scanning-with-nikto
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performing-web-application-vulnerability-triage
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performing-web-cache-deception-attack
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performing-web-cache-poisoning-attack
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remediating-s3-bucket-misconfiguration
cloud security · low
reverse-engineering-ios-app-with-frida
mobile security · low
scanning-containers-with-trivy-in-cicd
devsecops · low
scanning-infrastructure-with-nessus
vulnerability management · medium
securing-api-gateway-with-aws-waf
cloud security · low
securing-aws-iam-permissions
cloud security · low
securing-aws-lambda-execution-roles
cloud security · low
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cloud security · low
securing-container-registry-images
cloud security · low
securing-github-actions-workflows
devsecops · low
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ot ics security · medium
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cloud security · low
securing-remote-access-to-ot-environment
ot ics security · medium
securing-serverless-functions
cloud security · low
testing-android-intents-for-vulnerabilities
mobile security · low
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api security · medium
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api security · medium
testing-api-for-mass-assignment-vulnerability
api security · medium
testing-api-security-with-owasp-top-10
web application security · medium
testing-cors-misconfiguration
web application security · medium
testing-for-broken-access-control
web application security · medium
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web application security · medium
testing-for-email-header-injection
web application security · medium
testing-for-host-header-injection
web application security · medium
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web application security · medium
testing-for-open-redirect-vulnerabilities
web application security · medium
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web application security · medium
testing-for-xml-injection-vulnerabilities
web application security · medium
testing-for-xss-vulnerabilities
penetration testing · medium
testing-for-xss-vulnerabilities-with-burpsuite
web application security · medium
testing-for-xxe-injection-vulnerabilities
web application security · medium
testing-jwt-token-security
web application security · medium
testing-mobile-api-authentication
mobile security · low
testing-oauth2-implementation-flaws
api security · medium
testing-websocket-api-security
api security · medium
triaging-vulnerabilities-with-ssvc-framework
vulnerability management · medium
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