Epik Confirms Hack, Gigabytes of Data on Offer

Epik, the domain registrar known for hosting several large right-wing organizations, has confirmed a hack of its systems, a week after attackers branding themselves part of the Anonymous hacktivist collective said that they had obtained and leaked gigabits of data from the hosting company,...

openSUSE 15 Security Update : fail2ban (openSUSE-SU-2021:1274-1)

The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2021:1274-1 advisory. - fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 throug...

OpSec. Expanding your search: Hunting domains

In the last few blogs I have introduced OSINT and OpSec, talked about leaky images and using Google Dorks and how to use those techniques specifically to examine your own corporate OpSec. One of the most important aspects is to understand how wide your target expands. Many companies own multiple...

Effective Threat-Hunting Queries in a Redacted World

A decade ago, hunting for adversary infrastructure was often as simple as monitoring a domain registrant’s name or phone number in public WHOIS records. As bad actors have moved first toward privacy protection services and then gained further obscurity behind laws such as the General Data...

The vulnerability of the fail2ban software, related to errors in the checking function, allows a violator to execute arbitrary code.

The vulnerability of the fail2ban software is related to errors in the mail-whois function’s validation process. Exploiting this vulnerability allows a remote attacker to execute arbitrary code by sending a specially crafted request...

Remote Code Execution

fail2ban is vulnerable to remote code execution. The mailing action mail-whois command mail from mailutils package used in mail actions like mail-whois can execute command allows an attacker to execute arbitrary commands due to unescaped sequences \n in foreign input...

DEBIAN-CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

ALPINE-CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

Remote code execution

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

UBUNTU-CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749: Improper Neutralization of Special Elements used in an OS Command

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

fail2ban 代码注入漏洞

fail2ban is a software application. Disable causes multiple hosts with authentication errors. fail2ban suffers from a code injection vulnerability that could lead to remote code execution. To exploit the vulnerability, an attacker would need to insert malicious characters into the response sent b...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-32749

CVE-2021-32749 affects fail2ban before fixed versions. A vulnerability in the mailing action mail-whois allows remote code execution if unescaped sequences (\n~) in foreign input (e.g., whois outputs) are processed by the mail command. Exploitation requires attacker-supplied input via MITM or com...