chenaotian

9 exploits Active since Jan 2021
CVE-2023-0386 NOMISEC HIGH WORKING POC
Local Privilege Escalation via CVE-2023-0386
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
123 stars
CVSS 7.8
CVE-2022-0185 NOMISEC HIGH WORKING POC
Linux kernel - Privilege Escalation
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
38 stars
CVSS 8.4
CVE-2022-0492 NOMISEC HIGH WORKING POC
Docker cgroups Container Escape
A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
33 stars
CVSS 7.8
CVE-2022-0847 NOMISEC HIGH WORKING POC
Dirty Pipe Local Privilege Escalation via CVE-2022-0847
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
26 stars
CVSS 7.8
CVE-2021-4034 NOMISEC HIGH WORKING POC
Local Privilege Escalation in polkits pkexec
A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.
12 stars
CVSS 7.8
CVE-2021-3156 NOMISEC HIGH WORKING POC
Sudo Heap-Based Buffer Overflow
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
10 stars
CVSS 7.8
CVE-2021-3560 NOMISEC HIGH WRITEUP
polkit < 0.119 - Unauthenticated Privilege Escalation via D-Bus Request
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
9 stars
CVSS 7.8
CVE-2022-25636 NOMISEC HIGH WORKING POC
Linux Kernel 5.4-5.6.10 - Privilege Escalation via nf_dup_netdev Heap Out-of-Bounds Write
net/netfilter/nf_dup_netdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nf_tables_offload.
3 stars
CVSS 7.8
CVE-2022-0185 GITLAB HIGH WORKING POC
Linux kernel - Privilege Escalation
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
CVSS 8.4