bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

A flaw was found in BIND, where it does not sufficiently limit the number of fetches that can be performed while processing a referral response. This flaw allows an attacker to cause a denial of service attack. The attacker can also exploit this behavior to use the recursing server as a reflector...

DDoS attacks in Q2 2020

News overview Not just one but two new DDoS amplification methods were discovered last quarter. In mid-May, Israeli researchers reported a new DNS server vulnerability that lurks in the DNS delegation process. The vulnerability exploitation scheme was dubbed "NXNSAttack". The hacker sends to a...

bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

A flaw was found in BIND, where it does not sufficiently limit the number of fetches that can be performed while processing a referral response. This flaw allows an attacker to cause a denial of service attack. The attacker can also exploit this behavior to use the recursing server as a reflector...

Exploit for Incorrect Default Permissions in Ui Unifi_Controller

This is a PoC exploit for CVE-2020-12695, a vulnerability in the CallStranger protocol. The exploit is implemented in Python and uses the upnpy library for UPnP communication. The script is designed to simulate data exfiltration, bypassing DLP Data Loss Prevention systems, and can also be used to...

NXNSAttack

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records...

Amplification Attacks

PowerDNS Recursor is vulnerable toamplification attacks. It does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafte...

FreeBSD-SA-20:19.unbound

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-20:19.unbound Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in unbound Category: contrib Module: unbound Announced: 2020-07-08 Affects:...

EulerOS Virtualization 3.0.6.0 : ntp (EulerOS-SA-2020-1723)

According to the versions of the ntp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The monlist feature in ntprequest.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service traffic...

EulerOS Virtualization 3.0.6.0 : memcached (EulerOS-SA-2020-1784)

According to the versions of the memcached package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume Network Amplification, CWE-406 vulnerability...

USN-4374-1: Unbound vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Unbound incorrectly handled certain queries. A remote attacker could use this issue to perform an amplification attack directed at a target...

unbound security update

1.4.20-29.1 - Fix segfault in unbound-1.4.20-amplifying-an-incoming-query.patch - Resolves: rhbz1839171 CVE-2020-12662, rhbz1840257 CVE-2020-12663 1.4.20-28.1 - Fix unbound-1.4.20-amplifying-an-incoming-query.patch patch so it won't produce compiler warnings - Resolves: rhbz1839171 CVE-2020-12662...

unbound: incomplete fix for CVE-2020-12662 in RHEL7

An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared t...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

FortiAnalyzer could potentially be used in NTP amplification attacks

An insufficient control of network message volume CWE-406 vulnerability in FortiAnalyzer may allow an unauthenticated remote attacker to perform NTP amplification attacks thereby causing reflected denial of service on arbitrary targets via sending specially crafted mode 6 queries to the...

EulerOS 2.0 SP2 : bind (EulerOS-SA-2020-1676)

According to the versions of the bind packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can,...

Denial Of Service (DoS)

unbound is vulnerable to Denial of Service DoS. The attack exists because of amplification of an incoming query into a large number of queries directed to a target...

unbound security update

1.6.6-4 - Fix amplifying an incoming query into a large number of queries directed to a target - Resolves: rhbz1839172 CVE-2020-12662, rhbz1840258 CVE-2020-12663...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...