Jetty hash denial of service
|jetty-hash-dos (72017)||Medium Risk|
Jetty is vulnerable to a denial of service, caused by insufficient randomization of hash data structures. By sending multiple specially-crafted HTTP POST requests to an affected application containing conflicting hash key values, a remote attacker could exploit this vulnerability to cause the consumption of CPU resources.
Denial of Service
Apply the appropriate patch for your system. See References.
- IBM Security Bulletin 1611913: Potential Denial of Service (DoS) security vulnerability in IBM Sterling External Authentication Server.
- IBM Security Bulletin 1611925: Potential Denial of Service (DoS) security vulnerability in IBM Sterling Connect:Enterprise for UNIX.
- IBM Security Bulletin 1611931: Potential Denial of Service (DoS) security vulnerability in IBM Sterling Secure Proxy.
- IBM Security Bulletin 1620335: Potential security exposure when using InfoSphere BigInsights due to vulnerability in Jetty.
- IBM Security Bulletin 1632399: Denial of service in IBM InfoSphere Data Replication Dashboard (CVE-2011-4461).
- Jetty Web site: Jetty.
- n.runs-SA-2011.004 : Denial of Service through hash table multi-collisions.
- oCERT-2011-003: multiple implementations denial-of-service via hash algorithm collision.
- BID-51199: Jetty Hash Collision Denial Of Service Vulnerability
- CVE-2011-4461: Jetty 8.1.0.RC2 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
- OSVDB ID: 78117: Jetty Hash Collision Form Parameter Parsing Remote DoS
- SA47408: Jetty Web Form Hash Collision Denial of Service Vulnerability
- SA50738: IBM Sterling Secure Proxy Jetty Web Form Hash Collision Denial of Service Vulnerability
- SA51586: IBM InfoSphere BigInsights Java and Jetty Denial of Service Vulnerabilities
- SA52882: IBM InfoSphere Replication Server Jetty Hash Collision Denial of Service Vulnerability
- US-CERT VU#903934: Hash table implementations vulnerable to algorithmic complexity attacks
- IBM InfoSphere BigInsights 1.1.0
- IBM InfoSphere BigInsights 1.2.0
- IBM InfoSphere BigInsights 1.3.0
- IBM InfoSphere BigInsights 1.4.0
- IBM InfoSphere Replication Server 10.1
- IBM InfoSphere Replication Server 9.7
- IBM Sterling Connect Enterprise for UNIX 2.4
- IBM Sterling Connect Enterprise for UNIX 2.5
- IBM Sterling Secure Proxy 2.x
- IBM Sterling Secure Proxy 3.3
- IBM Sterling Secure Proxy 3.4
- Mort Bay Consulting Jetty 6
- Mort Bay Consulting Jetty 7
Dec 28, 2011
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