Tor traffic routing denial of service
| tor-trafficrouting-dos (28686) |  Low Risk |
Description:
Tor is vulnerable to a denial of service, caused by multiple communication handling errors. If the victim's initial entry node has been set to point to a compromised Tor server, a remote attacker could use the victim's client as a Tor server and route Tor network traffic through the client and possibly cause the victim's client to crash.
Note: This vulnerability also affects ScatterChat, which uses a vulnerable version of Tor.
Platforms Affected:
- ScatterChat, ScatterChat prior to 1.0.2
- Tor, Tor prior to 0.1.1.23
Remedy:
For Tor:
Upgrade to the latest version of Tor, 0.1.1.23 or later, available from the Tor Web site. See References.
For ScatterChat:
Upgrade to the latest version of ScatterChat, 1.0.2 or later, available from the ScatterChat Web site. See References.
Consequences:
Denial of Service
References:
- Full-Disclosure Mailing List, Sat Sep 02 2006 - 20:06:11 CDT , ScatterChat Advisory 2006-02: Win32 Tor Client Routing and Denial of Service Vulnerabilities at http://archives.neohapsis.com/archives/fulldisclosure/2006-09/0028.html.
- ScatterChat Web site, ScatterChat at http://www.scatterchat.com/.
- Tor Web site, Tor at http://tor.eff.org/.
- tor-announce Mailing List, Tue, 29 Aug 2006 05:29:39 -0400, Tor security advisory: clients will route traffic at http://archives.seul.org/or/announce/Aug-2006/msg00001.html.
- BID-19785: Tor Hostile Traffic Routing and Denial of Service Vulnerabilities
- CVE-2006-4508: Unspecified vulnerability in (1) Tor 0.1.0.x before 0.1.0.18 and 0.1.1.x before 0.1.1.23, and (2) ScatterChat before 1.0.2, allows remote attackers operating a Tor entry node to route arbitrary Tor traffic through clients or cause a denial of service (flood) via unspecified vectors.
- SA21708: Tor Denial of Service and Traffic Routing
- SA21725: ScatterChat Tor Denial of Service and Traffic Routing
Reported:
Aug 29, 2006
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