CriticalCVE-2024-8956

    PTZOptics NDI and SDI Cameras /cgi-bin/param.cgi Insufficient Authentication (CVE-2024-8956)

    Published In CISA KEV since Sources: CVE.org, pwn.watch

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    What is affected, what to do

    PTZOptics PT30X-SDI/NDI-xx before firmware 6.3.40 is vulnerable to an insufficient authentication issue. The camera does not properly enforce authentication to /cgi-bin/param.cgi when requests are sent without an HTTP Authorization header.

    The vulnerability is being actively exploited; treat it as a priority. Update PTZOptics PT30X-SDI to version 6.3.40, PTZOptics PT30X-NDI to version 6.3.40. Immediate actions, mitigation and detection rules are in the runbook below.

    Affected
    • PTZOptics PT30X-SDI lt *..6.3.40
    • PTZOptics PT30X-NDI lt *..6.3.40
    Fixed in
    • PTZOptics PT30X-SDI 6.3.40
    • PTZOptics PT30X-NDI 6.3.40

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    9.1

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    9.1

    CVSS v3

    Severity Critical on the scale from 0 to 10.

    Source: CVE.org, pwn.watch

    58.8 %

    EPSS score

    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.

    Source: FIRST EPSS, percentile 99.11

    Show all metrics
    Severity
    Critical
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    230.28 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    actively exploitedSource: VulnCheck KEV (opens in a new tab) How we classify
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    9.1 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    9.1
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    58.8 %
    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    99.11
    Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    Actively exploited
    Published
    In CISA KEV since

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    CISA assessment (SSVC)
    Exploitation: active · automatable · Technical impact: total
    Source: CISA Vulnrichment, as of 8 October 2025
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-306

    Response and mitigation

    Why act now?

    Prioritisation rationale

    The flaw is network-reachable without authentication or user interaction, leaks credentials and permits config tampering; chained with CVE-2024-8957 it gives full root takeover, placing it among the CVEs with very high exploitation likelihood. Attackers mass-scan for internet-facing cameras to enlist them in botnets, harvest audio/video, or use them as a foothold into internal networks — broadcast, events, education, houses of worship and public-sector sites are typical targets. CISA does not flag known ransomware use. Rate internet-exposed devices as critical (fix within hours); cameras reachable only inside a properly segmented network rate high, patched in this week's maintenance window.

    1. Runbook step 1

      Immediate response (0-24 h)

      • Update firmware: Upgrade every PTZOptics PT30X-SDI and PT30X-NDI (including PT30X-NDI-xx-G2) to firmware 6.3.40 or later. Record each device's current firmware version beforehand so you can evidence remediation (NIS2 reporting).
      • Kill internet exposure now: Remove any port forwards, NAT rules or public IPs that expose the camera web interface (typically TCP 80/443). Verify with an external scan of your public ranges and a Shodan/Censys lookup.
      • Treat credentials as compromised: Usernames, password hashes and configuration details were readable without authentication. Rotate all camera passwords after patching and check for reuse — rotate matching credentials on NVRs, streaming encoders, production PCs or domain accounts as well.
      • Verify configuration integrity: Attackers can change individual values or overwrite the entire config file. Diff each device's configuration against a known-good baseline (network, NTP, stream destinations, user accounts). On any deviation: factory reset, reflash 6.3.40, rebuild the config manually.
      • Triage for code execution: Chained with CVE-2024-8957 this yields remote code execution as root. Assume any device that was internet-reachable before patching may be compromised — disconnect it and reflash before returning it to service.

    2. Runbook step 2

      Mitigation layers

      • Network segmentation: Move cameras into a dedicated AV/OT VLAN. Allow web-interface access only from a management jump host or the control-room workstation; ACL-block everything else. Default-deny egress from the camera VLAN to the internet, permitting only required destinations (internal NTP, streaming servers).
      • IPS/firewall rule: Block or alert on HTTP requests to /cgi-bin/param.cgi lacking an Authorization header at the segment boundary. Suricata sketch: alert http any any -> $CAMERA_NET any (msg:"CVE-2024-8956 param.cgi unauth"; http.uri; content:"/cgi-bin/param.cgi"; http.header_names; content:!"Authorization"; sid:9000001; rev:1;).
      • Authenticating front end: If remote access is unavoidable, provide it only via VPN or an authenticating reverse proxy (mTLS/SSO) that drops unauthenticated requests to /cgi-bin/param.cgi.
      • Configuration hardening: Disable unused services and interfaces on the camera, set strong per-device passwords, and keep versioned off-device config backups for fast tamper detection and rollback.
      • Asset discovery: Inventory every PTZ camera — meeting rooms, lecture halls, houses of worship, event tech, control rooms. These are often bought outside IT and missing from the CMDB.

    3. Runbook step 3

      Detection rules

      • Network telemetry (Zeek http.log): Requests where uri contains /cgi-bin/param.cgi and username is empty (no Basic auth), especially from sources outside the management subnet. KQL sketch: ZeekHTTP | where uri has "/cgi-bin/param.cgi" and isempty(username) and not(ipv4_is_in_range(id_orig_h, "10.10.50.0/24")) (adjust the management range).
      • Firewall/NetFlow logs: Outbound connections from camera IPs to unfamiliar external hosts, odd ports or long-lived sessions — consistent with reverse shells, payload retrieval or botnet C2 after CVE-2024-8957 exploitation.
      • Configuration drift: Pull each camera's config on a schedule (e.g. hourly, authenticated) and hash-compare against baseline; any change to accounts, network or time-server parameters without a change ticket is an incident.
      • Behavioural anomalies: Correlate unexpected reboots, dropped NDI/SDI streams, altered PTZ presets or CPU/traffic spikes from SNMP/NMS monitoring with firewall events.
      • Retro-hunt: Search proxy, firewall and IDS logs back to at least public disclosure (KEV listing on 2024-11-04) for any access to /cgi-bin/param.cgi.

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Actively exploited: treat the vulnerability as a priority in vulnerability handling under Art. 21(2)(e) NIS2. If it is exploited in your environment, check the reporting obligation under Art. 23 (early warning within 24 hours).
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    Since 11.09.2026, manufacturers of affected products with digital elements must report actively exploited vulnerabilities under Art. 14 CRA, with an early warning within 24 hours via ENISA's single reporting platform.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    PTZOptics PT30X-SDI/NDI-xx before firmware 6.3.40 is vulnerable to an insufficient authentication issue. The camera does not properly enforce authentication to /cgi-bin/param.cgi when requests are sent without an HTTP Authorization header. The result is a remote and unauthenticated attacker can leak sensitive data such as usernames, password hashes, and configurations details. Additionally, the attacker can update individual configuration values or overwrite the whole file.

    Source: NVD (NIST), cvelistv5, CISA KEV Catalog, CVE.org (MITRE), pwn.watch

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    PTZOpticsPT30X-NDI
    • < 6.3.40
    • 6.3.40
    PTZOpticsPT30X-SDI
    • < 6.3.40
    • 6.3.40

    Vendors and products

    Affected operating systems

    Affected operating systems
    Otherptzopticspt30x-ndi-xx-g2_firmware—
    Otherptzopticspt30x-sdi_firmware—

    Weakness classes (CWE)

    • CWE-306Missing Authentication for Critical Function

      Base

      The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

      Entry at MITRE CWE-306

    Public exploit references

    Publicly reported proof-of-concepts, exploit modules and detection templates for this vulnerability. NEOSEC links to the original sources only and does not provide any exploit code.

    Public exploit references
    CISA KEV CatalogCISA Known Exploited Vulnerability (opens in a new tab)cisa.govactively exploited

    References & sources

    • ptzoptics.comPTZOptics advisory: CVE-2024-8956Vendor advisory, Release notes, pwn-watch
    • vulncheck.comadvisories/ptzoptics-insufficient-authThird-party advisory, Third-party advisory
    • labs.greynoise.iogrimoire/2024-10-31-sift-0-day-rceTechnical description, Third-party advisory, Exploit, Exploit, Third-party advisory
    • greynoise.ioblog/greynoise-intelligence-discovers-zero-day-vulnerabilities-…Third-party advisory, Third-party advisory
    • cisa.govknown-exploited-vulnerabilities-catalog?field_cve=CVE-2024-8956government-resource, US government resource
    • pwn.watchpwn.watch: PTZOptics PT30X-SDI/NDI Cameras: 2 actively exploited vulnerabilitiespwn-watch
    • NVD (NIST)NVD: CVE-2024-8956pwn-watch
    • NVD (NIST)NVD: CVE-2024-8957pwn-watch
    • cisa.govCISA Known Exploited Vulnerabilities Catalogpwn-watch
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