ISC Releases Security Patches for New BIND DNS Software Vulnerabilities

Jan 28, 2023

Jan 28, 2023Ravie LakshmananServer Security / DNS

The Internet Systems Consortium (ISC) has released patches to
address multiple security vulnerabilities in the Berkeley Internet
Name Domain (BIND) 9 Domain Name System (DNS) software suite that
could lead to a denial-of-service (DoS) condition.

“A remote attacker could exploit these vulnerabilities to
potentially cause denial-of-service conditions and system
failures,” the U.S. Cybersecurity and Infrastructure Security
Agency (CISA) said ^[1]
in an advisory released Friday.

The open source software is used by major financial firms,
national and international carriers, internet service providers
(ISPs), retailers, manufacturers, educational institutions, and
government entities, according to its website ^[2].

All four flaws reside in named ^[3], a BIND9 service ^[4]
that functions as an authoritative nameserver for a fixed set of
DNS zones or as a recursive resolver for clients on a local
network.

The list of the bugs, which are rated 7.5 on the CVSS scoring
system, is as follows –

CVE-2022-3094^[5] – An UPDATE message
flood may cause named to exhaust all available memory
CVE-2022-3488^[6] – BIND Supported Preview
Edition named may terminate unexpectedly when processing ECS
options in repeated responses to iterative queries
CVE-2022-3736^[7] – named configured to
answer from stale cache may terminate unexpectedly while processing
RRSIG queries
CVE-2022-3924^[8] – named configured to
answer from stale cache may terminate unexpectedly at
recursive-clients soft quota

Successful exploitation of the vulnerabilities could cause the
named service to crash or exhaust available memory on a target
server.

The issues affect versions 9.16.0 to 9.16.36, 9.18.0 to 9.18.10,
9.19.0 to 9.19.8, and 9.16.8-S1 to 9.16.36-S1. CVE-2022-3488 also
impacts BIND Supported Preview Edition versions 9.11.4-S1 to
9.11.37-S1. They have been resolved in versions 9.16.37, 9.18.11,
9.19.9, and 9.16.37-S1.

Although there is no evidence that any of these vulnerabilities
are being actively exploited, users are recommended to upgrade to
the latest version as soon as possible to mitigate potential
threats.

Found this article interesting? Follow us on Twitter ^[9]
and LinkedIn ^[10] to read more exclusive
content we post.

References

^{^}
said
(www.cisa.gov)
^{^}
website
(www.isc.org)
^{^}
named
(kb.isc.org)
^{^}
BIND9
service (bind9.readthedocs.io)
^{^}
CVE-2022-3094
(kb.isc.org)
^{^}
CVE-2022-3488
(kb.isc.org)
^{^}
CVE-2022-3736
(kb.isc.org)
^{^}
CVE-2022-3924
(kb.isc.org)
^{^}
Twitter
 (twitter.com)
^{^}
LinkedIn
(www.linkedin.com)

The Hacker News Headlines

NoFilter Attack: Sneaky Privilege Escalation Method Bypasses Windows Security

Aug 18, 2023

The Hacker News Headlines

Google Chrome’s New Feature Alerts Users About Auto-Removal of Malicious Extensions

Aug 18, 2023

The Hacker News Headlines

New Apple iOS 16 Exploit Enables Stealthy Cellular Access Under Fake Airplane Mode

Aug 18, 2023

OWASP TOP !0

Injection. Injection flaws, such as SQL, NoSQL, OS, and LDAP injection, occur when untrusted data is sent to an interpreter as part of a command or query. The attacker’s hostile data can trick the interpreter into executing unintended commands or accessing data without proper authorization. Broken Authentication. Application functions related to authentication and session management are often implemented incorrectly, allowing attackers to compromise passwords, keys, or session tokens, or to exploit other implementation flaws to assume other users’ identities temporarily or permanently. Sensitive Data Exposure. Many web applications and APIs do not properly protect sensitive data, such as financial, healthcare, and PII. Attackers may steal or modify such weakly protected data to conduct credit card fraud, identity theft, or other crimes. Sensitive data may be compromised without extra protection, such as encryption at rest or in transit, and requires special precautions when exchanged with the browser. XML External Entities (XXE). Many older or poorly configured XML processors evaluate external entity references within XML documents. External entities can be used to disclose internal files using the file URI handler, internal file shares, internal port scanning, remote code execution, and denial of service attacks. Broken Access Control. Restrictions on what authenticated users are allowed to do are often not properly enforced. Attackers can exploit these flaws to access unauthorized functionality and/or data, such as access other users’ accounts, view sensitive files, modify other users’ data, change access rights, etc. Security Misconfiguration. Security misconfiguration is the most commonly seen issue. This is commonly a result of insecure default configurations, incomplete or ad hoc configurations, open cloud storage, misconfigured HTTP headers, and verbose error messages containing sensitive information. Not only must all operating systems, frameworks, libraries, and applications be securely configured, but they must be patched/upgraded in a timely fashion. Cross-Site Scripting XSS. XSS flaws occur whenever an application includes untrusted data in a new web page without proper validation or escaping, or updates an existing web page with user-supplied data using a browser API that can create HTML or JavaScript. XSS allows attackers to execute scripts in the victim’s browser which can hijack user sessions, deface web sites, or redirect the user to malicious sites. Insecure Deserialization. Insecure deserialization often leads to remote code execution. Even if deserialization flaws do not result in remote code execution, they can be used to perform attacks, including replay attacks, injection attacks, and privilege escalation attacks. Using Components with Known Vulnerabilities. Components, such as libraries, frameworks, and other software modules, run with the same privileges as the application. If a vulnerable component is exploited, such an attack can facilitate serious data loss or server takeover. Applications and APIs using components with known vulnerabilities may undermine application defenses and enable various attacks and impacts. Insufficient Logging & Monitoring. Insufficient logging and monitoring, coupled with missing or ineffective integration with incident response, allows attackers to further attack systems, maintain persistence, pivot to more systems, and tamper, extract, or destroy data. Most breach studies show time to detect a breach is over 200 days, typically detected by external parties rather than internal processes or monitoring.

ISC Releases Security Patches for New BIND DNS Software Vulnerabilities

References

Related Post

NoFilter Attack: Sneaky Privilege Escalation Method Bypasses Windows Security

Google Chrome’s New Feature Alerts Users About Auto-Removal of Malicious Extensions

New Apple iOS 16 Exploit Enables Stealthy Cellular Access Under Fake Airplane Mode

You missed

Protected: Rotary VI EAST

Protected: BetterCyberCareer Group

Protected: Benin Club 1931 – Official

Protected: Whatsapp AI Automation Group