In December network security vendor Fortinet disclosed that a critical vulnerability in its FortiOS operating system was being exploited by attackers in the wild. This week, after additional analysis, the company released more details about a sophisticated malware implant that those attackers deployed through the flaw.
Based on currently available information, the original zero-day attack was highly targeted to government-related entities. However, since the vulnerability has been known for over a month, all customers should patch it as soon as possible as more attackers could start using it.
The vulnerability, tracked as CVE-2022-42475, is in the SSL-VPN functionality of FortiOS and can be exploited by remote attackers without authentication. Successful exploitation can result in the execution of arbitrary code and commands.
It was discovered that the NFSD implementation in the Linux kernel did not
properly handle some RPC messages, leading to a buffer overflow. A remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-43945)
Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation
in the Linux kernel contained multiple use-after-free vulnerabilities. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-42896)
It was discovered that the Xen netback driver in the Linux kernel did not
properly handle packets structured in certain ways. An attacker in a guest
VM could possibly use this to cause a denial of service (host NIC
availability). (CVE-2022-3643)
It was discovered that an integer overflow vulnerability existed in the
Bluetooth subsystem in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2022-45934)
A vulnerability, which was classified as problematic, has been found in dpup fittr-flickr. This issue affects some unknown processing of the file fittr-flickr/features/easy-exif.js of the component EXIF Preview Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 08875dd8a2e5d0d16568bb0d67cb4328062fccde. It is recommended to apply a patch to fix this issue. The identifier VDB-218297 was assigned to this vulnerability.
A vulnerability classified as problematic was found in jianlinwei cool-php-captcha up to 0.2. This vulnerability affects unknown code of the file example-form.php. The manipulation of the argument captcha with the input %3Cscript%3Ealert(1)%3C/script%3E leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.3 is able to address this issue. The name of the patch is c84fb6b153bebaf228feee0cbf50728d27ae3f80. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218296.
The group used Telegram channels, a DDoS payment program, a multi-OS supported toolkit and GitHub
Hackers discussed how to use stolen payment cards and bypass geo controls and SMS limitations
Cisco did not release updates to address the vulnerabilities and no workarounds address them
firefox-stable-3720230113090701.1
Firefox 108.0.2 release. For details, see https://www.mozilla.org/en-US/firefox/108.0.2/releasenotes/
European law enforcement agencies have dealt a blow to scammers running call centres across the continent that stole millions of Euros from cryptocurrency investors.
Crime-fighting authorities teamed up to tackle organised criminal groups who tricked unwary members of the public into investing in fake cryptocurrency schemes.
Read more in my article on the Hot for Security blog.
