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UK COMMUNICATIONS REGULATOR OFCOM HACKED WITH A MOVEIT FILE TRANSFER ZERO-DAY

June 13, 2023  By Pierluigi Paganini




UK COMMUNICATIONS REGULATOR OFCOM SUFFERED A DATA BREACH AFTER A CLOP RANSOMWARE
ATTACK EXPLOITING THE MOVEIT FILE TRANSFER ZERO-DAY.

UK’s communications regulator Ofcom disclosed a data breach after a Clop
ransomware attack. The threat actors exploited the zero-day flaw
(CVE-2023-34362,) in MOVEit file transfer and access the infrastructure of the
regulator.

A spokesperson for Ofcom told The Record that the ransomware group had access
confidential information which the regulator held on companies it regulates.


00:00/00:00


“A limited amount of information about certain companies we regulate – some of
it confidential – along with personal data of 412 Ofcom employees, was
downloaded during the attack,” the spokesperson told The Record. “We took
immediate action to prevent further use of the MOVEit service and to implement
the recommended security measures. We also swiftly alerted all affected
Ofcom-regulated companies, and we continue to offer support and assistance to
our colleagues.”

MOVEit Transfer is a managed file transfer that is used by enterprises to
securely transfer files using SFTP, SCP, and HTTP-based uploads

The vulnerability is a SQL injection vulnerability, it can be exploited by an
unauthenticated attacker to gain unauthorized access to MOVEit Transfer’s
database. The vulnerability affects all MOVEit Transfer versions, it doesn’t
affect the cloud version of the product.

The Clop ransomware gang (aka Lace Tempest) was credited by Microsoft for the
recent campaign that exploits the zero-day vulnerability CVE-2023-34362.

On Wednesday, the Clop ransomware gang published an extortion note on its dark
web leak site claiming to have information on hundreds of businesses.

By May 31, Rapid7 experts discovered approximately 2,500 instances of MOVEit
Transfer publicly accessible on the internet, with a significant portion located
in the United States.

At this time the number of installs located in the UK is 127.

Recently another data breach made the headlines, the hack of the payroll
services provider Zellis.

The instance of MOVEit Transfer managed by the payroll processor Zellis was used
by the company to exchange files with tens of companies, this means that the
number of impacted firms could be significant.

As a result of the cyber attack on the payroll provider Zellis, the personal
data of employees at the BBC and British Airways has been compromised and
exposed.

One of Zellis’s customers, the British health and beauty retailer
and pharmacy chain Boots also confirmed to have been impacted by the attack.
Another firm impacted by the data breach is the airline Aer Lingus which
confirmed that “some of our current and former employee data” has been
disclosed.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, data breach)


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PIERLUIGI PAGANINI

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and
Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he
is also a Security Evangelist, Security Analyst and Freelance Writer.
Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security
expert with over 20 years experience in the field, he is Certified Ethical
Hacker at EC Council in London. The passion for writing and a strong belief that
security is founded on sharing and awareness led Pierluigi to find the security
blog "Security Affairs" recently named a Top National Security Resource for US.
Pierluigi is a member of the "The Hacker News" team and he is a writer for some
major publications in the field such as Cyber War Zone, ICTTF, Infosec Island,
Infosec Institute, The Hacker News Magazine and for many other Security
magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency
and Bitcoin”.




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EXPERTS RELEASED POC EXPLOIT FOR MOVEIT TRANSFER CVE-2023-34362 FLAW

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Copyright 2021 Security Affairs by Pierluigi Paganini All Right Reserved.
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