3com : Security Vulnerabilities, CVEs,

The telnet server for 3Com hardware such as PS40 SuperStack II does not delay or disconnect remote attackers who provide an incorrect username or password, which makes it easier to break into the server via brute force password guessing.

Unknown vulnerability in 3Com OfficeConnect Remote 812 ADSL Router allows remote attackers to bypass authentication via repeated attempts using any username and password. NOTE: this identifier was inadvertently re-used for another issue due to a typo; that issue was assigned CVE-2004-0447. This candidate is ONLY for the ADSL router bypass.

Multiple stack-based buffer overflows in 3Com 3CTftpSvc 2.0.1, and possibly earlier, allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a long mode field (aka transporting mode) in a (1) GET or (2) PUT command.

The 3Com 3CRWER100-75 router with 1.2.10ww software, when enabling an optional virtual server, configures this server to accept all source IP addresses on the external (Internet) interface unless the user selects other options, which might expose the router to unintended incoming traffic from remote attackers, as demonstrated by setting up a virtual server on port 80, which allows remote attackers to access the web management interface.

3Com TippingPoint IPS allows remote attackers to cause a denial of service (device hang) via a flood of packets on TCP port 80 with sequentially increasing source ports, related to a "badly written loop." NOTE: the vendor disputes this issue, stating that the product has "performed as expected with no DoS emerging.

The web management interface in 3Com Wireless 8760 Dual Radio 11a/b/g PoE Access Point allows remote attackers to cause a denial of service (device crash) via a malformed HTTP POST request.

US Robotics/3Com Total Control Chassis with Frame Relay between 3.6.22 and 3.7.24 does not properly enforce access filters when the "set host prompt" setting is made for a port, which allows attackers to bypass restrictions by providing the hostname twice at the "host: " prompt.

Management information base (MIB) for a 3Com SuperStack II hub running software version 2.10 contains an object identifier (.1.3.6.1.4.1.43.10.4.2) that is accessible by a read-only community string, but lists the entire table of community strings, which could allow attackers to conduct unauthorized activities.

Buffer overflow in 3Cdaemon 2.0 FTP server allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long commands such as login.

3Com OfficeConnect Remote 812 ADSL Router, firmware 1.1.9 and 1.1.7, allows remote attackers to bypass port access restrictions by connecting to an approved port and quickly connecting to the desired port, which is allowed by the router.

Buffer overflow in ftpd 5.4 in 3Com NBX 4.0.17 or ftpd 5.4.2 in 3Com NBX 4.1.4 allows remote attackers to cause a denial of service (crash) via a long CEL command.

The 3COM Wireless router 3CRADSL72 running Boot Code 1.3d allows remote attackers to gain sensitive information such as passwords and router settings via a direct HTTP request to app_sta.stm.

Multiple heap-based buffer overflows in 3Com 3CServer allow remote authenticated users to execute arbitrary code via long FTP commands, as demonstrated using the STAT command.

3Com Switch SS3 4400 switches, firmware 5.11, 6.00 and 6.10 and earlier, allow remote attackers to read the SNMP Read-Write Community string and conduct unauthorized actions via unspecified "normally restricted management packets on the device" that cause the community string to be returned.

The 3Com TippingPoint IPS do not properly handle certain full-width and half-width Unicode character encodings in an HTTP POST request, which might allow remote attackers to evade detection of HTTP traffic.

TippingPoint IPS before 20070710 does not properly handle a hex-encoded alternate Unicode '/' (slash) character, which might allow remote attackers to send certain network traffic and avoid detection, as demonstrated by a cmd.exe attack.

Unspecified vulnerability in TOS 2.1.x, 2.2.x before 2.2.5, and 2.5.x before 2.5.2 on TippingPoint IPS allows remote attackers to avoid detection by sending certain fragmented packets.

Unspecified vulnerability in 3Com SuperStack 3 4400 switches with firmware version before 3.31 allows remote attackers to cause a denial of service (device reset) via a crafted request to the web management interface. NOTE: the provenance of this information is unknown; details are obtained from third party reports.

3Com HiPer Access Router Card (HiperARC) 4.0 through 4.2.29 allows remote attackers to cause a denial of service (reboot) via a flood of IAC packets to the telnet port.

SNMP agents in 3Com AirConnect AP-4111 and Symbol 41X1 Access Point allow remote attackers to obtain the WEP encryption key by reading it from a MIB when the value should be write-only, via (1) dot11WEPDefaultKeyValue in the dot11WEPDefaultKeysTable of the IEEE 802.11b MIB, or (2) ap128bWepKeyValue in the ap128bWEPKeyTable in the Symbol MIB.

3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.

Buffer overflow in web server of 3com HomeConnect Cable Modem External with USB (#3CR29223) allows remote attackers to cause a denial of service (crash) via a long HTTP request.

3com OfficeConnect Remote 812 ADSL Router 1.1.7 does not properly clear memory from DHCP responses, which allows remote attackers to identify the contents of previous HTTP requests by sniffing DHCP packets.

Buffer overflow in 3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4 allows remote attackers to cause a denial of service (reboot or packet loss) via a long string containing Telnet escape characters to the Telnet port.

3com NBX IP VOIP NetSet Configuration Manager allows remote attackers to cause a denial of service (crash) via a Nessus scan in safeChecks mode.