Defending against Heap Overflow by Using Randomization in Nested Virtual Clusters Chee Meng Tey and Debin Gao Singapore Management University, Singapore {cmtey.2008,dbgao}@smu.edu.sg Heap based buffer overflows are a dangerous class of vulnerability. One counter- measure is randomizing the location...
CVE-2023-27997 is a heap-based buffer overflow vulnerability in the secure socket layer virtual private network (SSL VPN) functionality in FortiOS and FortiProxy in Fortinet devices including its FortiGate Next Generation Firewalls (NGFW). An unauthenticated, remote attacker could ...
Consequently, if we execute “sudoedit -s”, then we set both MODE_EDIT and MODE_SHELL (but not MODE_RUN), we avoid the escape code, reach the vulnerable code, and overflow the heap-based buffer “user_args” through a command-line argument that ends with a ...
Try Surface CommandGet a continuous 360° view of your attack surface Microsoft Edge Chromium: CVE-2023-4362 Heap buffer overflow in Mojom IDL Severity 9 CVSS (AV:N/AC:M/Au:N/C:C/I:C/A:C) Published 08/15/2023 Created 08/22/2023 ...
PSIRT Blogs Analysis of FG-IR-22-398 – FortiOS - heap-based buffer overflow in SSLVPNdBy Carl Windsor, Guillaume Lovet, Hongkei Chan, and Alex Kong | January 11, 2023 Affected Platforms: FortiOS Impacted Users: Government & large organizations Impact: Data loss and OS and...
If you are unfamiliar with stack based buffer overflows to an intermediate/advanced level then it is suggested that you focus in this area first. What we are about to cover, has been dead and buried for a while, so if you are looking for newer techniques to exploit the windows heap mana...
The heap buffer overflow gives us the ability to conduct a fastbin dup attack. “Fastbin dup” is a type of attack that corrupts the state of the heap so that a subsequent call tomallocreturns a chosen address. Oncemallochas returned a chosen address, we can write arbitrary data to that ...
attackers often instead build their exploits using heap-related vulnerabilities such asuse-after-frees, double-frees,andheap-overflows. These heap-based vulnerabilities are more difficult to understand than their stack-based counterparts because attack techniques against heap-based vulnerabilities can be ve...
Heap-based buffer overflow in the mch_expand_wildcards function in os_unix.c in Vim 6.2 and 6.3 allows user-assisted attackers to execute arbitrary code via shell metacharacters in filenames, as demonstrated by the netrw.v3 test case. ...
A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel...