fabric_operating_system

A vulnerability in Brocade Fabric OS software v9.1.1, v9.0.1e, v8.2.3c, v7.4.2j, and earlier versions could allow a remote unauthenticated attacker to execute on a Brocade Fabric OS switch commands capable of modifying zoning, disabling the switch, disabling ports, and modifying the switch IP address.

Brocade Fabric OS versions before Brocade Fabric OS v9.0.0, v8.2.2c, v8.2.1e, v8.1.2k, v8.2.0_CBN3, contains code injection and privilege escalation vulnerability.

Multiple buffer overflow vulnerabilities in REST API in Brocade Fabric OS versions v8.2.1 through v8.2.1d, and 8.2.2 versions before v8.2.2c could allow remote unauthenticated attackers to perform various attacks.

Rest API in Brocade Fabric OS v8.2.1 through v8.2.1d, and 8.2.2 versions before v8.2.2c is vulnerable to multiple instances of reflected input.

An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel before 5.0.11. There is a net/ipv4/tcp_input.c signed integer overflow in tcp_ack_update_rtt() when userspace writes a very large integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading to a denial of service or possibly unspecified other impact, aka CID-19fad20d15a6.

A vulnerability in the proxy service of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow remote unauthenticated attackers to obtain sensitive information and possibly cause a denial of service attack.

RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authenticator signature.

A vulnerability in Brocade Fabric OS CLI before Brocade Fabric OS v9.1.0, 9.0.1e, 8.2.3c, 8.2.0cbn5, 7.4.2.j could allow a remote authenticated attacker to perform stack buffer overflow using in “firmwaredownload” and “diagshow” commands.

Supportlink CLI in Brocade Fabric OS Versions v8.2.1 through v8.2.1d, and 8.2.2 versions before v8.2.2c does not obfuscate the password field, which could expose users’ credentials of the remote server. An authenticated user could obtain the exposed password credentials to gain access to the remote host.

Brocade Webtools in Brocade Fabric OS versions before Brocade Fabric OS versions v9.1.1, v9.0.1e, and v8.2.3c could allow a low privilege webtools, user, to gain elevated admin rights, or privileges, beyond what is intended or entitled for that user. By exploiting this vulnerability, a user whose role is not an admin can create a new user with an admin role using the operator session id. The issue was replicated after intercepting the admin, and operator authorization headers sent unencrypted and editing a user addition request to use the operator's authorization header.

A vulnerability in the Brocade Webtools firmware update section of Brocade Fabric OS before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow remote authenticated attackers to execute arbitrary commands.

A vulnerability in Brocade Fabric OS CLI before Brocade Fabric OS v9.1.0, 9.0.1e, 8.2.3c, and 7.4.2j could allow a local authenticated user to break out of restricted shells with “set context” and escalate privileges.

The firmwaredownload command on Brocade Fabric OS v9.2.0 could log the FTP/SFTP/SCP server password in clear text in the SupportSave file when performing a downgrade from Fabric OS v9.2.0 to any earlier version of Fabric OS.

Remote code execution (RCE) vulnerability in Brocade Fabric OS after v9.0 and before v9.2.0 could allow an attacker to execute arbitrary code and use this to gain root access to the Brocade switch.

A vulnerability in the default configuration of the Simple Network Management Protocol (SNMP) feature of Brocade Fabric OS versions before v9.0.0 could allow an authenticated, remote attacker to read data from an affected device via SNMP. The vulnerability is due to hard-coded, default community string in the configuration file for the SNMP daemon. An attacker could exploit this vulnerability by using the static community string in SNMP version 1 queries to an affected device.

Implementation of the Simple Network Management Protocol (SNMP) operating on the Brocade 6547 (FC5022) embedded switch blade, makes internal script calls to system.sh from within the SNMP binary. An authenticated attacker could perform command or parameter injection on SNMP operations that are only enabled on the Brocade 6547 (FC5022) embedded switch. This injection could allow the authenticated attacker to issue commands as Root.

A vulnerability in the authentication mechanism of Brocade Fabric OS versions before Brocade Fabric OS v.9.0.1a, v8.2.3a and v7.4.2h could allow a user to Login with empty password, and invalid password through telnet, ssh and REST.

A command injection vulnerability in Brocade Fabric OS before 9.2.0c, and 9.2.1 through 9.2.1a on IP extension platforms could allow a local authenticated attacker to perform a privileged escalation via crafted use of the portcfg command. This specific exploitation is only possible on IP Extension platforms: Brocade 7810, Brocade 7840, Brocade 7850 and on Brocade X6 or X7 directors with an SX-6 Extension blade installed. The attacker must be logged into the switch via SSH or serial console to conduct the attack.

The request handling functions in web management interface of Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h do not properly handle malformed user input, resulting in a service crash. An authenticated attacker could use this weakness to cause the FOS HTTP application handler to crash, requiring a reboot.