WebAccess in VMware VirtualCenter 2.0.2 and 2.5, VMware Server 2.0, and VMware ESX 3.0.3 and 3.5 allows remote attackers to leverage proxy-server functionality to spoof the origin of requests via unspecified vectors, related to a "URL forwarding vulnerability."
Created attachment 331637 [details] ipdstcache (in blue) VS route -Cn | wc -l (in green) over time
Description of problem: The value of ipdstcache (in /proc/slabinfo) continues to grow constantly, even thought the cached route table remains fairly constant. This leads to the eventual time when ipdstcache reaches the value of /proc/sys/net/ipv4/route/maxsize. When this happens, the kernel complains with 'dst cache overflow' and the server no longer responds to any network activity.
Version-Release number of selected component (if applicable): kernel 2.6.18-92.1.22.el5
How reproducible: live system being currently affected by this issue.
Steps to Reproduce: 1. Configure test machine as a router between two networks 2. send packets from network A to network B with a large number of different source/dest IPs 3. Watch the values of ipdstcache and rtcache Actual results: ipdstcache continues to grow while rtcache grows and shrinks with the traffic
Expected results: ipdstcache and rtcache follow each other closely. Values return to zero after traffic stops and route cache entries expire.
Additional info:
nfsd in the Linux kernel before 2.6.28.9 does not drop the CAPMKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the rootsquash option.
Directory traversal vulnerability in vCenter Server in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, and VMware VirtualCenter 2.5 before Update 6a, allows remote attackers to read arbitrary files via unspecified vectors.
Cross-site scripting (XSS) vulnerability in WebAccess in VMware VirtualCenter 2.0.2 and 2.5 and VMware ESX 3.0.3 and 3.5, and the Server Console in VMware Server 1.0, allows remote attackers to inject arbitrary web script or HTML via the name of a virtual machine.
Cross-site scripting (XSS) vulnerability in WebAccess in VMware VirtualCenter 2.0.2 and 2.5 and VMware ESX 3.0.3 and 3.5 allows remote attackers to inject arbitrary web script or HTML via vectors related to "context data."
VMWare VirtualCenter client 2.x before 2.0.1 Patch 1 (Build 33643) and 1.4.x before 1.4.1 Patch 1 (Build 33425), when server certificate verification is enabled, does not verify the server's X.509 certificate when creating an SSL session, which allows remote malicious servers to spoof valid servers via a man-in-the-middle attack.