CVE-2025-61955

# CVE-2025-61955 - F5OS-A/F5OS-C Local Privilege Escalation PoC # WARNING: This is a conceptual PoC for educational and authorized testing purposes only. # Unauthorized use of this code against systems you do not own is illegal. #!/bin/bash # Step 1: Verify current user privileges (should be low-privileged) echo "[*] Current user: $(whoami)" echo "[*] Current UID: $(id -u)" # Step 2: Check for vulnerable F5OS version echo "[*] Checking F5OS version..." if [ -f /etc/f5-release ]; then cat /etc/f5-release fi # Step 3: Identify potential privilege escalation vectors echo "[*] Searching for SUID binaries..." find / -perm -4000 -type f 2>/dev/null | head -20 # Step 4: Check for exploitable services running as root echo "[*] Checking running processes..." ps aux | grep -E "root" | head -10 # Step 5: Attempt exploitation via vulnerable system component # (The actual exploit mechanism depends on the specific vulnerability) # This may involve: # - Exploiting a vulnerable SUID binary # - Abusing misconfigured permissions on system files # - Leveraging a vulnerable kernel module # - Exploiting a container escape vulnerability # Example: Exploit attempt (conceptual) EXPLOIT_PATH="/usr/bin/vulnerable_f5os_component" if [ -u "$EXPLOIT_PATH" ]; then echo "[*] Found potential vulnerable SUID binary: $EXPLOIT_PATH" # Execute exploit payload # $EXPLOIT_PATH --exploit fi echo "[*] PoC execution completed"

{"cve": {"id": "CVE-2025-61955", "sourceIdentifier": "[email protected]", "published": "2025-10-15T14:15:56.987", "lastModified": "2025-10-21T20:35:08.677", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability exists in F5OS-A and F5OS-C systems that may allow an authenticated attacker with local access to escalate their privileges.  A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.0, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-95"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:f5:f5os-a:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.5.1", "versionEndExcluding": "1.5.4", "matchCriteriaId": "274F5948-3CDD-4E53-8D4F-AF728EE7CB0E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:f5:f5os-a:1.8.0:*:*:*:*:*:*:*", "matchCriteriaId": "01B43BE0-F112-4580-A188-3FE0DD140D07"}, {"vulnerable": true, "criteria": "cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.6.0", "versionEndIncluding": "1.6.2", "matchCriteriaId": "CF2910A9-DD68-4E44-8805-3392DA88A297"}, {"vulnerable": true, "criteria": "cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.8.0", "versionEndExcluding": "1.8.2", "matchCriteriaId": "EC50AAFB-DDD8-42B0-93DA-C8F6D9337EC8"}]}]}], "references": [{"url": "https://my.f5.com/manage/s/article/K000156771", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}