Exploit released for critical Cisco IOS XE flaw, many hosts still hacked

Public exploit code is now available for the critical Cisco IOS XE vulnerability tracked as CVE-2023-20198 that was leveraged as a zero-day to hack tens of thousands of devices. Cisco released patches for most releases of its IOS XE software but thousands of systems continue to be compromised, internet scans show. Ai, a company providing security assessment services, have shared details on how an attacker can bypass authentication on Cisco IOS XE devices vulnerable to CVE-2023-20198. In a technical report today, the researchers show how hackers can exploit the maximum severity security issue to create a new user with level 15 privileges that provide complete control over the device. Ai explains that an attacker can encode an HTTP request to the Web Services Management Agent service in iosd - a powerful binary in Cisco's IOS XE that can generate the configuration file for OpenResty used by the webui service vulnerable to CVE-2023-20198. Testing their exploit code, the researchers were able to create a new user with administrative permissions visible in the device's management interface. LeakIX, an intelligence platform for exposed online services, confirmed that the exploit that Secuinfra also observed could successfully hijack Cisco IOS XE devices. LeakIX's Cisco IOS XE honeypots were awoken by the threat actors, allowing researchers to see commands executed on devices. Cisco has updated its security bulletin for CVE-2023-20198 on October 30, announcing updates for IOS XE that address the vulnerability. Threat actors started exploiting CVE-2023-20198 when it was a zero-day before Cisco disclosed it on October 16. Ten days after that, the Censys platform for threat hunting found on October 25 around 28,000 Cisco IOS XE hosts showing signs of compromise spread all over the world. According to Censys' findings, many of the hacked devices are at major telecommunications and internet providers offering their services country-wide. Initial estimates after Cisco disclosed that the vulnerability was being exploited in the wild counted around 10,000 that were running a malicious implant. By the end of the week, internet scans showed that the implant was present on about 60,000 Cisco IOS XE devices exposed on the public web. The number dropped suddenly shortly after, as many of the hacked devices became invisible when the threat actor altered the malicious code to check for an Authorization header before responding. Cisco patches IOS XE zero-days used to hack over 50,000 devices. Hackers update Cisco IOS XE backdoor to hide infected devices. Over 40,000 Cisco IOS XE devices infected with backdoor using zero-day. Cisco discloses new IOS XE zero-day exploited to deploy malware implant. Over 10,000 Cisco devices hacked in IOS XE zero-day attacks.

This Cyber News was published on www.bleepingcomputer.com. Publication date: Thu, 30 Nov 2023 23:19:27 +0000


Cyber News related to Exploit released for critical Cisco IOS XE flaw, many hosts still hacked

CVE-2018-0688 - Open redirect vulnerability in SEIKO EPSON printers and scanners (DS-570W firmware versions released prior to 2018 March 13, DS-780N firmware versions released prior to 2018 March 13, EP-10VA firmware versions released prior to 2017 September 4, ...
5 years ago
CVE-2018-0689 - HTTP header injection vulnerability in SEIKO EPSON printers and scanners (DS-570W firmware versions released prior to 2018 March 13, DS-780N firmware versions released prior to 2018 March 13, EP-10VA firmware versions released prior to 2017 September ...
5 years ago
Exploit released for critical Cisco IOS XE flaw, many hosts still hacked - Public exploit code is now available for the critical Cisco IOS XE vulnerability tracked as CVE-2023-20198 that was leveraged as a zero-day to hack tens of thousands of devices. Cisco released patches for most releases of its IOS XE software but ...
10 months ago Bleepingcomputer.com
Cisco patches IOS XE zero-days used to hack over 50,000 devices - Cisco has addressed the two vulnerabilities that hackers exploited to compromise tens of thousands of IOS XE devices over the past week. The free software release comes after a threat actor leveraged the security issues as zero-days to compromise and ...
10 months ago Bleepingcomputer.com
Over 40,000 Cisco IOS XE devices infected with backdoor using zero-day - More than 40,000 Cisco devices running the IOS XE operating system have been compromised after hackers exploited a recently disclosed maximum severity vulnerability tracked as CVE-2023-20198. There is no patch or a workaround available and the only ...
10 months ago Bleepingcomputer.com
Critical unauthenticated RCE flaw in OpenSSH server - MUST READ. Critical unauthenticated remote code execution flaw in OpenSSH server. Expert released PoC exploit code for Veeam Backup Enterprise Manager flaw CVE-2024-29849. CISA adds Oracle WebLogic Server flaw to its Known Exploited Vulnerabilities ...
3 months ago Securityaffairs.com
Over 10,000 Cisco devices hacked in IOS XE zero-day attacks - Attackers have exploited a recently disclosed critical zero-day bug to compromise and infect more than 10,000 Cisco IOS XE devices with malicious implants. The list of products running Cisco IOS XE software includes enterprise switches, aggregation ...
10 months ago Bleepingcomputer.com
Critical Apache Log4j2 flaw still threatens global finance - Critical Apache Log4j2 flaw still threatens global finance. CISA adds Apache Flink flaw to its Known Exploited Vulnerabilities catalog. CISA adds GitLab flaw to its Known Exploited Vulnerabilities catalog. Russia-linked APT28 used post-compromise ...
4 months ago Securityaffairs.com
Experts released PoC exploit code for RCE in Fortinet SIEM - Russia-linked APT28 used post-compromise tool GooseEgg to exploit CVE-2022-38028 Windows flaw. Crowdfense is offering a larger 30M USD exploit acquisition program. Threat actors actively exploit JetBrains TeamCity flaws to deliver malware. PoC ...
4 months ago Securityaffairs.com
High-severity flaw affects Cisco Firepower Management Center - CISA adds GitLab flaw to its Known Exploited Vulnerabilities catalog. CISA adds Cisco ASA and FTD and CrushFTP VFS flaws to its Known Exploited Vulnerabilities catalog. Critical Fortinet's FortiClient EMS flaw actively exploited in the wild. Hackers ...
4 months ago Securityaffairs.com
High-severity flaw affects Cisco Firepower Management Center - CISA adds GitLab flaw to its Known Exploited Vulnerabilities catalog. CISA adds Cisco ASA and FTD and CrushFTP VFS flaws to its Known Exploited Vulnerabilities catalog. Critical Fortinet's FortiClient EMS flaw actively exploited in the wild. Hackers ...
4 months ago Securityaffairs.com
Threat actors actively exploit D-Link DIR-859 router flaw - MUST READ. Threat actors actively exploit D-Link DIR-859 router flaw CVE-2024-0769. Expert released PoC exploit code for Veeam Backup Enterprise Manager flaw CVE-2024-29849. CISA adds D-Link DIR router flaws to its Known Exploited Vulnerabilities ...
3 months ago Securityaffairs.com
Threat actors actively exploit D-Link DIR-859 router flaw - MUST READ. Threat actors actively exploit D-Link DIR-859 router flaw CVE-2024-0769. Expert released PoC exploit code for Veeam Backup Enterprise Manager flaw CVE-2024-29849. CISA adds D-Link DIR router flaws to its Known Exploited Vulnerabilities ...
3 months ago Securityaffairs.com
Cisco discloses new IOS XE zero-day exploited to deploy malware implant - Cisco disclosed a new high-severity zero-day today, actively exploited to deploy malicious implants on IOS XE devices compromised using the CVE-2023-20198 zero-day unveiled earlier this week. The company said it found a fix for both vulnerabilities ...
10 months ago Bleepingcomputer.com
Number of hacked Cisco IOS XE devices plummets from 50K to hundreds - The number of Cisco IOS XE devices hacked with a malicious backdoor implant has mysteriously plummeted from over 50,000 impacted devices to only a few hundred, with researchers unsure what is causing the sharp decline. This week, Cisco warned that ...
10 months ago Bleepingcomputer.com
Juniper Networks fixed a critical authentication bypass flaw in some of its routers - MUST READ. Threat actors actively exploit D-Link DIR-859 router flaw CVE-2024-0769. CISA adds Oracle WebLogic Server flaw to its Known Exploited Vulnerabilities catalog. Russia-linked APT28 used post-compromise tool GooseEgg to exploit CVE-2022-38028 ...
3 months ago Securityaffairs.com
US SEC's X account hacked to announce fake Bitcoin ETF approval - The X account for the U.S. Securities and Exchange Commission was hacked today to issue a fake announcement on the approval of Bitcoin ETFs on security exchanges. The announcement came this afternoon in a now-deleted tweet from the SEC's hacked X ...
9 months ago Bleepingcomputer.com
What's Coming to Cisco Live Europe 2024 for the Data Center Developer? - In just a week or so, Cisco Live EMEA, 2024 will be ready to sizzle at the RAI Amsterdam. From a Cisco Cloud Networking standpoint, Cisco Nexus Dashboard, Cisco ACI, and Nexus 9000 Series switches are showing up in a big way. Read on to learn what ...
8 months ago Feedpress.me
Building Data Center Infrastructure for the AI Revolution  - This is part two of a multi-part blog series on AI. Part one, Why 2024 is the Year of AI for Networking, discussed Cisco's AI networking vision and strategy. This blog will focus on evolving data center network infrastructure for supporting AI/ML ...
6 months ago Feedpress.me
FlyingYeti targets Ukraine using WinRAR exploit to drop Malware - MUST READ. FlyingYeti targets Ukraine using WinRAR exploit to deliver COOKBOX Malware. Russia-linked APT28 used post-compromise tool GooseEgg to exploit CVE-2022-38028 Windows flaw. Microsoft fixed two zero-day bugs exploited in malware attacks. ...
4 months ago Securityaffairs.com
5 Tips for Pi Day Savings at the Cisco Learning Network Store - Save 25% on select training products from the Cisco Learning Network Store for 24 hours only. Two new multicloud training courses are now available in the Cisco Learning Network Store-and they're included in the Pi Day Sale. If you are an active ...
6 months ago Feedpress.me
Cisco Adds New Security and AI Capabilities in Next Step Toward Cisco Networking Cloud Vision - PRESS RELEASE. AMSTERDAM, Feb. 6, 2024 /PRNewswire/ - CISCO LIVE EMEA - Cisco, the leader in networking and security, today introduced new capabilities and technologies across its networking portfolio that are designed to drive a more unified and ...
8 months ago Darkreading.com
Accelerating Your Journey to the 128-bit Universe - The 2023 National Cybersecurity Strategy requires acceleration of your agency's mission to go boldly into the 128-bit address space universe with greater speed and urgency. IPv6-only is the addressing standard for the U.S. Federal Government, ...
10 months ago Feedpress.me
Embrace the Multicloud Era with Cisco Learning and Certifications at Cisco Live Amsterdam - It's time to come together with experts and thousands of your peers to connect, learn, and advance your career with the Learning & Certifications team at Cisco Live Amsterdam, February 5-9, 2024. Let's dive into how you can make the most of your ...
8 months ago Feedpress.me
SEC confirms X account was hacked in SIM swapping attack - The U.S. Securities and Exchange Commission confirmed today that its X account was hacked through a SIM-swapping attack on the cell phone number associated with the account. Earlier this month, the SEC's X account was hacked to issue a fake ...
8 months ago Bleepingcomputer.com

Latest Cyber News


Cyber Trends (last 7 days)


Trending Cyber News (last 7 days)