Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this ac…
Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.
https://cwe.mitre.org/data/definitions/522.html →Open in CWE collection →An attacker may take advantage of the application feature to help users recover their forgotten passwords in order to gain access into the system with the same privileges as the original user. Generally password recovery schemes tend to be weak and insecure.
https://capec.mitre.org/data/definitions/50.html →Open in CAPEC collection →Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.
https://capec.mitre.org/data/definitions/102.html →Open in CAPEC collection →An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
https://capec.mitre.org/data/definitions/474.html →Open in CAPEC collection →Through the exploitation of how service accounts leverage Kerberos authentication with Service Principal Names (SPNs), the adversary obtains and subsequently cracks the hashed credentials of a service account target to exploit its privileges. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. As an authenticated user, the adversary may request Active Directory and obtain a service ticket with portions encrypted via RC4 with the private key of the authenticated account. By extracting the local ticket and saving it disk, the adversary can brute force the hashed value to reveal the target account credentials.
https://capec.mitre.org/data/definitions/509.html →Open in CAPEC collection →When an operating system starts, it also starts programs called services or daemons. Modifying existing services may break existing services or may enable services that are disabled/not commonly used.
https://capec.mitre.org/data/definitions/551.html →Open in CAPEC collection →This pattern of attack involves an adversary that uses stolen credentials to leverage remote services such as RDP, telnet, SSH, and VNC to log into a system. Once access is gained, any number of malicious activities could be performed.
https://capec.mitre.org/data/definitions/555.html →Open in CAPEC collection →https://capec.mitre.org/data/definitions/560.html →Open in CAPEC collection →
An adversary guesses or obtains (i.e. steals or purchases) legitimate Windows administrator credentials (e.g. userID/password) to access Windows Admin Shares on a local machine or within a Windows domain.
https://capec.mitre.org/data/definitions/561.html →Open in CAPEC collection →https://capec.mitre.org/data/definitions/600.html →Open in CAPEC collection →
An adversary obtains (i.e. steals or purchases) legitimate Windows domain credential hash values to access systems within the domain that leverage the Lan Man (LM) and/or NT Lan Man (NTLM) authentication protocols.
https://capec.mitre.org/data/definitions/644.html →Open in CAPEC collection →An adversary uses stolen Kerberos tickets to access systems/resources that leverage the Kerberos authentication protocol. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. An adversary can obtain any one of these tickets (e.g. Service Ticket, Ticket Granting Ticket, Silver Ticket, or Golden Ticket) to authenticate to a system/resource without needing the account's credentials. Depending on the ticket obtained, the adversary may be able to access a particular resource or generate TGTs for any account within an Active Directory Domain.
https://capec.mitre.org/data/definitions/645.html →Open in CAPEC collection →An adversary obtains (i.e. steals or purchases) legitimate Kerberos credentials (e.g. Kerberos service account userID/password or Kerberos Tickets) with the goal of achieving authenticated access to additional systems, applications, or services within the domain.
https://capec.mitre.org/data/definitions/652.html →Open in CAPEC collection →An adversary guesses or obtains (i.e. steals or purchases) legitimate operating system credentials (e.g. userID/password) to achieve authentication and to perform authorized actions on the system, under the guise of an authenticated user or service. This applies to any Operating System.
https://capec.mitre.org/data/definitions/653.html →Open in CAPEC collection →| Product | Vendor | Status |
|---|---|---|
| atp100_firmware | * | Exploited |
| atp100w_firmware | * | Exploited |
| atp200_firmware | * | Exploited |
| atp500_firmware | * | Exploited |
| atp700_firmware | * | Exploited |
| atp800_firmware | * | Exploited |
| usg1100_firmware | * | Exploited |
| usg110_firmware | * | Exploited |
| usg1900_firmware | * | Exploited |
| usg20-vpn_firmware | * | Exploited |
| usg20w-vpn_firmware | * | Exploited |
| usg210_firmware | * | Exploited |
| usg2200_firmware | * | Exploited |
| usg310_firmware | * | Exploited |
| usg40_firmware | * | Exploited |
| usg40w_firmware | * | Exploited |
| usg60_firmware | * | Exploited |
| usg60w_firmware | * | Exploited |
| usg_flex_100_firmware | * | Exploited |
| usg_flex_100w_firmware | * | Exploited |