PR08-24 - Proxim Tsunami MP.11 2411 vulnerable to SNMP Injection
- Vulnerability found:
- 02 May 2008
- Vendor informed:
- 02 May 2008
- Severity level:
- Adrian Pastor of ProCheckUp Ltd
Although usually the SNMP write community string must be guessed/cracked for a SNMP injection  attack to work, some embedded devices come with SNMP read/write access enabled by default. Some examples include many ZyXEL Prestige router models  used in residential and SOHO networks, and also products used in corporate and government environments such as the Proxim Tsunami MP.11 2411 Wireless Point-to-Multipoint System.
From Proxim Tsunami MP.11 2411's user manual:
SNMP Read/Write Community Password
The password for read and write access to the MP.11/MP.11a using SNMP. Enter a password in both the Password field and the Confirm field. The default password is public.
No response was received from the vendor. A workaround has been included in the "Fix" section.
Successfully tested on
Tsunami MP.11 2411 Wireless Point-to-Multipoint System
Wireless Router v- v1.0.0 Bld#24 SN-03AT15620395 v3.0.3
Note: make/model and firmware version were obtained via the iso.org.dod.internet.mgmt.mib-2.system.sysDescr.0 SNMP OID.
- Proof of concept:
- $ snmpset -v1 -c public 192.168.1.100 sysName.0 s '"><script>alert(1)</script>'
- How to fix:
- Disable SNMP write access. If SNMP write access is absolutely needed, change the default read/write community string from "public" to a non-predictable and hard-to-crack value.
-  "SNMP Joins Dark Side in New XSS Attack"
 "ZyXEL Gateways Vulnerability Research" (See section 2.3 Persistent XSS via SNMP)
Tsunami MP.11 Model 2411 and Model 5054:
ProCheckUp Security Vulnerabilities and Advisories:
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