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ShellBot Cracks Linux SSH Servers, Debuts New Evasion Tactic

The botnet — built for DDoS, backdooring, and dropping malware — is evading standard URL signature detections with a novel approach involving Hex IP addresses.

DARKReading
#vulnerability#web#mac#linux#ddos#dos#backdoor#perl#botnet#ssh
Ransomware attacks doubled year on year. Are organizations equipped to handle the evolution of Ransomware in 2023?

Ransomware attacks have only increased in sophistication and capabilities over the past year. From new evasion and anti-analysis techniques to stealthier variants coded in new languages, ransomware groups have adapted their tactics to bypass common defense strategies effectively.  This article will cover just some of those new developments in Q3-2023 as well as give predictions on quarters to

CVE-2023-44184

An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the management daemon (mgd) process of Juniper Networks Junos OS and Junos OS Evolved allows a network-based authenticated low-privileged attacker, by executing a specific command via NETCONF, to cause a CPU Denial of Service to the device's control plane. This issue affects: Juniper Networks Junos OS * All versions prior to 20.4R3-S7; * 21.2 versions prior to 21.2R3-S5; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S4; * 22.1 versions prior to 22.1R3-S2; * 22.2 versions prior to 22.2R3; * 22.3 versions prior to 22.3R2-S1, 22.3R3; * 22.4 versions prior to 22.4R1-S2, 22.4R2. Juniper Networks Junos OS Evolved * All versions prior to 21.4R3-S4-EVO; * 22.1 versions prior to 22.1R3-S2-EVO; * 22.2 versions prior to 22.2R3-EVO; * 22.3 versions prior to 22.3R3-EVO; * 22.4 versions prior to 22.4R2-EVO. An indicator of compromis...

CVE-2023-23632

BeyondTrust Privileged Remote Access (PRA) versions 22.2.x to 22.4.x are vulnerable to a local authentication bypass. Attackers can exploit a flawed secret verification process in the BYOT shell jump sessions, allowing unauthorized access to jump items by guessing only the first character of the secret.

CVE-2023-31192: 2023/06/30: SE202301: Security Advisory: CVE-2023-27395 etc: Fixed 6 vulnerabilities of SoftEther VPN in cooperation with Cisco Systems, Inc.

An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Debian Security Advisory 5525-1

Debian Linux Security Advisory 5525-1 - Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix, which might result in denial of service, information disclosure or privilege escalation.

Siemens CPCI85 Firmware of SICAM A8000 Devices

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: CP-8050, CP-8031 Vulnerability: Use of Hard-coded Credentials 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker with knowledge of the corresponding credential to login to the device via SSH. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected if activated with debug support: CP-8031 MASTER MODULE (6MF2803-1AA00): All versions prior to CPCI85 V05.11 CP-8050 MASTER MODULE (6MF2805-0AA00): All versions prior to CPCI85 V05.11 3.2 Vulnerability Overview 3.2.1 USE OF HARD-CODED CREDEN...

ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers

The threat actors behind ShellBot are leveraging IP addresses transformed into its hexadecimal notation to infiltrate poorly managed Linux SSH servers and deploy the DDoS malware. "The overall flow remains the same, but the download URL used by the threat actor to install ShellBot has changed from a regular IP address to a hexadecimal value," the AhnLab Security Emergency response Center (ASEC)

CVE-2023-38817: EchOh-No! a Vulnerability and PoC demonstration in a popular Minecraft AntiCheat tool.

An issue in Inspect Element Ltd Echo.ac v.5.2.1.0 allows a local attacker to gain privileges via a crafted command to the echo_driver.sys component.

Red Hat Security Advisory 2023-5615-01

Red Hat Security Advisory 2023-5615-01 - The libssh2 packages provide a library that implements the SSH2 protocol.