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CVE-2009-2692 is a local privilege-escalation vulnerability in Linux kernel socket handling. Linux kernel versions 2.6.0 through 2.6.30.4 and 2.4.4 through 2.4.37.4 do not initialize all socket-operation function pointers in proto_ops structures. A local user can map page zero, place attacker-controlled code there, and invoke an unavailable socket operation—demonstrated with sock_sendpage on a PF_PPPOX socket—causing a NULL-pointer dereference that redirects execution to code at page zero with elevated privileges.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (7 hidden).
This repository is a collection of 17 files covering five historical Linux-kernel local privilege-escalation CVEs: CVE-2009-1185, CVE-2009-1337, CVE-2009-2692, CVE-2009-2698, and CVE-2009-3547. It contains 10 executable source/script files (six C programs and four shell scripts), six Markdown README/reference files, and an MIT license. It is not a Metasploit, Nuclei, or other framework module collection. The CVE-2009-1185 shell script builds a malicious LD_PRELOAD library and forges a NETLINK_KOBJECT_UEVENT directed at a supplied udev netlink PID, causing privileged execution of the library constructor and creation of /tmp/suid. CVE-2009-1337 builds a clone/exit_notify exploit that abuses setuid chfn/gpasswd behavior to generate a core file in /etc/logrotate.d; the injected configuration later makes /tmp/.m setuid-root. CVE-2009-2692 includes two sendfile-related local root exploits: the larger wunderbar_emporium implementation resolves kernel symbols, triggers vulnerable socket families, obtains kernel execution, escalates credentials, and attempts to disable SELinux/AppArmor/LSM protections; its wrapper selects direct null-page, SELinux runcon, or setuid Pulseaudio shared-library routes. The smaller 9436 variant maps page zero, uses a PF_PPPOX socket and sendfile trigger, overwrites credentials, and starts a root shell. CVE-2009-2698 uses an ip_append_data()/UDP socket trigger after installing a null-page trampoline, then modifies task credentials and launches a shell. CVE-2009-3547 is a 32-bit fs/pipe.c race/structure-corruption exploit supporting several Linux 2.6 pipe-layout eras; it races pipe descriptors through /proc/<pid>/fd/4 and modifies task credentials before opening a root shell. No external command-and-control, download, or fixed remote target is present. Socket calls are local triggers for vulnerable kernel networking/protocol code, rather than connections to a remote host.
This repository contains a single Metasploit module (sock_sendpage.rb) that exploits a local privilege escalation vulnerability in the Linux kernel (CVE-2009-2692, also known as 'EXACTCHANGE'). The vulnerability is due to improper initialization in the proto_ops struct, allowing a NULL pointer dereference and arbitrary code execution in kernel context if page 0 is mapped. The exploit targets Linux x86 systems running kernel versions 2.4.4 through 2.4.37.4 and 2.6.0 through 2.6.30.4. The module checks for kernel version, architecture, and the mmap_min_addr setting before attempting exploitation. It generates a custom ELF binary containing shellcode (payload) and writes it to a writable directory (default: /tmp), then executes it to gain root privileges. The payload is customizable via Metasploit and can provide a root shell or meterpreter session. The module is operational and requires local access to the target system. No network endpoints are involved; all actions are performed locally on the compromised host.
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14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel 2.6.x-era vulnerability in sock_sendpage leading to a NULL pointer dereference; included in SSHStalker’s legacy local kernel exploit arsenal for privilege escalation on unpatched/legacy systems.
A local privilege-escalation vulnerability in the Linux kernel caused by uninitialized socket-operation function pointers in proto_ops structures. A local attacker can map page zero, place code there, and invoke an unavailable socket operation—such as sendpage on a PF_PPPOX socket—to exploit a NULL-pointer dereference and gain privileges.
A vulnerability where an unimplemented network socket operation points to an uninitialized handler function, causing a crash via NULL pointer dereference.
A network-socket vulnerability where an unimplemented operation references an uninitialized handler function, producing a NULL-pointer-dereference crash.
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