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CWE-1242

Inclusion of Undocumented Features or Chicken Bits

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Description

The device includes chicken bits or undocumented features that can create entry points for unauthorized actors.

Hierarchy (View 1000)

Parents

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Related attack patterns (CAPEC)

CAPEC-212 · CAPEC-36

CVEs mapped to this weakness (10)

CVESevRiskCVSSEPSSKEVPublishedDescription
CVE-2025-55050Cri0.649.80.00Sep 9, 2025CWE-1242: Inclusion of Undocumented Features
CVE-2017-20204Cri0.61—0.01Oct 15, 2025DBLTek GoIP devices (models GoIP 1, 4, 8, 16, and 32) contain an undocumented vendor backdoor in the Telnet administrative interface that allows remote authentication as an undocumented user via a proprietary challenge–response scheme which is fundamentally flawed. Because the challenge response can be computed from the challenge itself, a remote attacker can authenticate without knowledge of a secret and obtain a root shell on the device. This can lead to persistent remote code execution, full device compromise, and arbitrary control of the device and any managed services. The firmware used within these devices was updated in December 2016 to make this vulnerability more complex to exploit. However, it is unknown if DBLTek has taken steps to fully mitigate.
CVE-2023-3634Hig0.578.80.00Apr 16, 2026In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.
CVE-2021-4469Hig0.57—0.00Nov 14, 2025Denver SHO-110 IP cameras expose a secondary HTTP service on TCP port 8001 that provides access to a '/snapshot' endpoint without authentication. While the primary web interface on port 80 enforces authentication, the backdoor service allows any remote attacker to retrieve image snapshots by directly requesting the 'snapshot' endpoint. An attacker can repeatedly collect snapshots and reconstruct the camera stream, compromising the confidentiality of the monitored environment.
CVE-2026-24714Hig0.497.50.00Jan 30, 2026Some end of service NETGEAR products provide "TelnetEnable" functionality, which allows a magic packet to activate telnet service on the box.
CVE-2025-22450Hig0.497.50.00Jan 22, 2025Inclusion of undocumented features issue exists in UD-LT2 firmware Ver.1.00.008_SE and earlier. A remote attacker may disable the LAN-side firewall function of the affected products, and open specific ports.
CVE-2024-52564Hig0.497.50.00Dec 5, 2024Inclusion of undocumented features or chicken bits issue exists in UD-LT1 firmware Ver.2.1.8 and earlier and UD-LT1/EX firmware Ver.2.1.8 and earlier. A remote attacker may disable the firewall function of the affected products. As a result, an arbitrary OS command may be executed and/or configuration settings of the device may be altered.
CVE-2024-54457Hig0.477.20.00Dec 18, 2024Inclusion of undocumented features or chicken bits issue exists in AE1021 firmware versions 2.0.10 and earlier and AE1021PE firmware versions 2.0.10 and earlier, which may allow a logged-in user to enable telnet service.
CVE-2024-7011Med0.426.50.00Sep 27, 2024Sharp NEC Projectors (NP-CB4500UL, NP-CB4500WL, NP-CB4700UL, NP-P525UL, NP-P525UL+, NP-P525ULG, NP-P525ULJL, NP-P525WL, NP-P525WL+, NP-P525WLG, NP-P525WLJL, NP-CG6500UL, NP-CG6500WL, NP-CG6700UL, NP-P605UL, NP-P605UL+, NP-P605ULG, NP-P605ULJL, NP-CA4120X, NP-CA4160W, NP-CA4160X, NP-CA4200U, NP-CA4200W, NP-CA4202W, NP-CA4260X, NP-CA4300X, NP-CA4355X, NP-CD2100U, NP-CD2120X, NP-CD2300X, NP-CR2100X, NP-CR2170W, NP-CR2170X, NP-CR2200U, NP-CR2200W, NP-CR2280X, NP-CR2310X, NP-CR2350X, NP-MC302XG, NP-MC332WG, NP-MC332WJL, NP-MC342XG, NP-MC372X, NP-MC372XG, NP-MC382W, NP-MC382WG, NP-MC422XG, NP-ME342UG, NP-ME372W, NP-ME372WG, NP-ME372WJL, NP-ME382U, NP-ME382UG, NP-ME382UJL, NP-ME402X, NP-ME402XG, NP-ME402XJL, NP-CB4500XL, NP-CG6400UL, NP-CG6400WL, NP-CG6500XL, NP-PE455UL, NP-PE455ULG, NP-PE455WL, NP-PE455WLG, NP-PE505XLG, NP-CB4600U, NP-CF6600U, NP-P474U, NP-P554U, NP-P554U+, NP-P554UG, NP-P554UJL, NP-CG6600UL, NP-P547UL, NP-P547ULG, NP-P547ULJL, NP-P607UL+, NP-P627UL, NP-P627UL+, NP-P627ULG, NP-P627ULJL, NP-PV710UL-B, NP-PV710UL-B1, NP-PV710UL-W, NP-PV710UL-W+, NP-PV710UL-W1, NP-PV730UL-BJL, NP-PV730UL-WJL, NP-PV800UL-B, NP-PV800UL-B+, NP-PV800UL-B1, NP-PV800UL-BJL, NP-PV800UL-W, NP-PV800UL-W+, NP-PV800UL-W1, NP-PV800UL-WJL, NP-CA4200X, NP-CA4265X, NP-CA4300U, NP-CA4300W, NP-CA4305X, NP-CA4400X, NP-CD2125X, NP-CD2200W, NP-CD2300U, NP-CD2310X, NP-CR2105X, NP-CR2200X, NP-CR2205W, NP-CR2300U, NP-CR2300W, NP-CR2315X, NP-CR2400X, NP-MC333XG, NP-MC363XG, NP-MC393WJL, NP-MC423W, NP-MC423WG, NP-MC453X, NP-MC453X, NP-MC453XG, NP-MC453XJL, NP-ME383WG, NP-ME403U, NP-ME403UG, NP-ME403UJL, NP-ME423W, NP-ME423WG, NP-ME423WJL, NP-ME453X, NP-ME453XG, NP-CB4400USL, NP-CB4400WSL, NP-CB4510UL, NP-CB4510WL, NP-CB4510XL, NP-CB4550USL, NP-CB6700UL, NP-CG6510UL, NP-PE456USL, NP-PE456USLG, NP-PE456USLJL, NP-PE456WSLG, NP-PE506UL, NP-PE506ULG, NP-PE506ULJL, NP-PE506WL, NP-PE506WLG, NP-PE506WLJL) allows an attacker to cause a denial-of-service (DoS) condition via SNMP service.
CVE-2024-2103Med0.426.50.00Apr 4, 2024 Inclusion of undocumented features vulnerability accessible when logged on with a privileged access level on the following Schweitzer Engineering Laboratories relays could allow the relay to behave unpredictably: SEL-700BT Motor Bus Transfer Relay, SEL-700G Generator Protection Relay, SEL-710-5 Motor Protection Relay, SEL-751 Feeder Protection Relay, SEL-787-2/-3/-4 Transformer Protection Relay, SEL-787Z High-Impedance Differential Relay . See product instruction manual appendix A dated 20240308 for more details regarding the SEL-751 Feeder Protection Relay. For more information for the other affected products, see their instruction manuals dated 20240329.