Cisco IOS malformed SAA packet denial of service
| cisco-ios-saa-dos (12014) |  Medium Risk |
Description:
Multiple Cisco routers running Cisco Internetwork Operating System Software (IOS) with the Service Assurance Agent (SAA) (formerly known as Response Time Report (RTR)) enabled, are vulnerable to a denial of service. By sending a malformed SAA packet, a remote attacker can cause the router to crash.
Platforms Affected:
- Cisco, IOS 12.0S
- Cisco, IOS 12.0SC
- Cisco, IOS 12.0SL
- Cisco, IOS 12.0SP
- Cisco, IOS 12.0ST
- Cisco, IOS 12.0SX
- Cisco, IOS 12.1
- Cisco, IOS 12.1E
- Cisco, IOS 12.1EA
- Cisco, IOS 12.1EC
- Cisco, IOS 12.1EX
- Cisco, IOS 12.1EY
- Cisco, IOS 12.2
- Cisco, IOS 12.2DA
- Cisco, IOS 12.2S
Remedy:
Upgrade to one of the fixed versions of Cisco IOS, as listed below. Contact Cisco Technical Support for information on obtaining an upgrade. See References.
12.0(22)SY or later
12.1(18) or later
12.1(13)E or later
12.1(11b)EW or later
12.1(11b)EW(0.46) or later
12.1(11b)EX or later
12.2(10) or later
12.2(15)BZ or later
12.2(12)DA or later
12.2(2)XK3 or later
12.2(4)XL5 or later
12.2(4)YG or later
12.2(4)YH or later
Consequences:
Denial of Service
References:
- Cisco Systems Inc. Security Advisory, 2003 May 15 15:00 UTC (GMT), Cisco IOS Software Processing of SAA Packets at http://www.cisco.com/warp/public/707/cisco-sa-20030515-saa.shtml.
- BID-7607: Cisco IOS Service Assurance Agent Malformed Packet Denial Of Service Vulnerability
- CVE-2003-0305: The Service Assurance Agent (SAA) in Cisco IOS 12.0 through 12.2, aka Response Time Reporter (RTR), allows remote attackers to cause a denial of service (crash) via malformed RTR packets to port 1967.
Reported:
May 15, 2003
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