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Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Buffer Overflow in Hikvision DVR DS-7204. π **Consequences**: Remote attackers can send malicious RTSP PLAY requests with oversized headers to execute arbitrary code. π₯ Total system compromise possible.
Q2Root Cause? (CWE/Flaw)
π‘οΈ **Root Cause**: Buffer Overflow. π **Flaw**: The device fails to properly validate the length of authentication headers in RTSP requests.β¦
π» **Privileges**: Arbitrary Code Execution. π΅οΈ **Impact**: Attackers gain full control over the DVR. π **Data**: Potential access to all recorded video streams and system configurations.
Q5Is exploitation threshold high? (Auth/Config)
β‘ **Threshold**: LOW. π **Auth**: Remote exploitation mentioned. π **Config**: No local access required. Attackers can strike from anywhere if the RTSP port is exposed.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π₯ **Public Exploit**: YES. π **References**: Exploit-DB #35356 and PacketStorm Security. π **Status**: Active exploitation tools are available publicly.
Q7How to self-check? (Features/Scanning)
π **Check**: Scan for Hikvision DVR DS-7204 devices. π‘ **Feature**: Look for open RTSP ports (usually 554). π **Verify**: Check firmware version for **2.2.10 build 131009**.
π **Workaround**: Block external access to RTSP port (554). π« **Mitigation**: Restrict network access to trusted IPs only. π **Defense**: Use firewalls to prevent remote RTSP PLAY requests.