securityaffairs.com Open in urlscan Pro
2606:4700:3031::6815:90b  Public Scan

Form analysis
1 forms found in the DOM

Name: searchform — GET https://securityaffairs.com/

<form role="search" method="get" name="searchform" id="searchform" action="https://securityaffairs.com/">
  <div>
    <input type="text" value="" name="s" id="s" autocomplete="off" title="Search..." class="blur">
    <button type="submit">
      <i class="fa fa-search"></i>
    </button>
  </div>
  <div id="autocomplete"></div>
</form>

Text Content

WE VALUE YOUR PRIVACY

We and our partners store and/or access information on a device, such as cookies
and process personal data, such as unique identifiers and standard information
sent by a device for personalised ads and content, ad and content measurement,
and audience insights, as well as to develop and improve products.

With your permission we and our partners may use precise geolocation data and
identification through device scanning. You may click to consent to our and our
partners’ processing as described above. Alternatively you may access more
detailed information and change your preferences before consenting or to refuse
consenting. Please note that some processing of your personal data may not
require your consent, but you have a right to object to such processing. Your
preferences will apply to this website only. You can change your preferences at
any time by returning to this site or visit our privacy policy.

MORE OPTIONSAGREE

Ad


 * Home
 * Cyber Crime
 * Cyber warfare
 * APT
 * Data Breach
 * Deep Web
 * Digital ID
 * Hacking
 * Hacktivism
 * Intelligence
 * Internet of Things
 * Laws and regulations
 * Malware
 * Mobile
 * Reports
 * Security
 * Social Networks
 * Terrorism
 * ICS-SCADA
 * POLICIES
 * Contact me


MUST READ

Headlines
 * Cleaning Products manufacturer Clorox Company took some systems offline after
   a cyberattack
 * CISA adds flaw in Citrix ShareFile to its Known Exploited Vulnerabilities
   catalog
 * A massive phishing campaign using QR codes targets the energy sector
 * Two unauthenticated stack buffer overflows found in Ivanti Avalanche EMM
 * Approximately 2000 Citrix NetScaler servers were backdoored in a massive
   campaign
 * Credentials for cybercrime forums found on roughly 120K computers infected
   with info stealers



Ad


 * Home
 * Cyber Crime
 * Cyber warfare
 * APT
 * Data Breach
 * Deep Web
 * Digital ID
 * Hacking
 * Hacktivism
 * Intelligence
 * Internet of Things
 * Laws and regulations
 * Malware
 * Mobile
 * Reports
 * Security
 * Social Networks
 * Terrorism
 * ICS-SCADA
 * POLICIES
 * Contact me


EXPERTS WARN ATTACKERS STARTED EXPLOITING CITRIX SHAREFILE RCE FLAW
CVE-2023-24489

July 31, 2023  By Pierluigi Paganini




RESEARCHERS WARN THAT THREAT ACTORS STARTED EXPLOITING CITRIX SHAREFILE RCE
VULNERABILITY CVE-2023-24489 IN THE WILD.

Citrix ShareFile is a widely used cloud-based file-sharing application, which is
affected by the critical remote code execution (RCE) tracked as CVE-2023-24489
(CVSS score of 9.1).

The flaw impacts the customer-managed ShareFile storage zones controller, an
unauthenticated, remote attacker can trigger the flaw to compromise the
controller by uploading arbitrary file or executing arbitrary code.


00:00/00:00


Citrix addressed the vulnerability in June 2023 with the release of version
5.11.24.

“A vulnerability has been discovered in the customer-managed ShareFile storage
zones controller which, if exploited, could allow an unauthenticated attacker to
remotely compromise the customer-managed ShareFile storage zones controller.”
the company said in an advisory. “This vulnerability affects all currently
supported versions of customer-managed ShareFile storage zones controller before
version 5.11.24.”

Researchers from threat intelligence firm Greynoise warn of the first attempts
to exploit the vulnerability in Citrix ShareFile.

“Attackers can exploit this vulnerability by taking advantage of errors in
ShareFile’s handling of cryptographic operations. The application uses AES
encryption with CBC mode and PKCS7 padding but does not correctly validate
decrypted data.” states Greynoise. “This oversight allows attackers to generate
valid padding and execute their attack, leading to unauthenticated arbitrary
file upload and remote code execution.”

“As of the publishing timestamp of this post, GreyNoise has observed IPs
attempting to exploit this vulnerability. Two have never seen GreyNoise before
this activity” adds GreyNoise.



Researchers at the cybersecurity firm Assetnote published technical details of
the vulnerability and published proof-of-concept (PoC) code for this flaw.

“A search online shows roughly 1000-6000 instances are internet accessible. This
popularity, combined with the software being used to store sensitive data, meant
if we found anything it could have quite an impact.” reads the analysis
published by Assetnote.

Other PoC exploits have been published online, for this reason, experts warn
that the number of attacks exploiting this issue will rapidly increase in the
forthcoming days.

“we saw how a few small errors in ShareFile lead to an unauthenticated file
upload and then remote code execution. Although the particular endpoint is not
enabled in all configurations, it has been common amongst the hosts we have
tested.” concludes Assetnote. “Given the number of instances online and the
reliability of the exploit, we have already seen a big impact from this
vulnerability.”

Follow me on Twitter: @securityaffairs Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, Citrix ShareFile)


SHARE THIS:

 * Email
 * Twitter
 * Print
 * LinkedIn
 * Facebook
 * More
 * 

 * Tumblr
 * Pocket
 * 


CitrixCitrix ShareFileHackinghacking newsinformation security newsIT Information
SecurityPierluigi PaganiniSecurity AffairsSecurity News


--------------------------------------------------------------------------------

SHARE ON

 * 
 * 
 * 
 * 
 * 
 * 
 * 


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”.




--------------------------------------------------------------------------------

PREVIOUS ARTICLE

In 2022, more than 40% of zero-day exploits used in the wild were variations of
previous issues

NEXT ARTICLE

Three flaws in Ninja Forms plugin for WordPress impact 900K sites

--------------------------------------------------------------------------------





YOU MIGHT ALSO LIKE


CLEANING PRODUCTS MANUFACTURER CLOROX COMPANY TOOK SOME SYSTEMS OFFLINE AFTER A
CYBERATTACK

August 17, 2023  By Pierluigi Paganini

CISA ADDS FLAW IN CITRIX SHAREFILE TO ITS KNOWN EXPLOITED VULNERABILITIES
CATALOG

August 16, 2023  By Pierluigi Paganini





 * Ad


 * DIGGING THE DEEP WEB: EXPLORING THE DARK SIDE OF THE WEB


 * CENTER FOR CYBER SECURITY AND INTERNATIONAL RELATIONS STUDIES

 * Ad


 * SUBSCRIBE SECURITY AFFAIRS NEWSLETTER


 * SECURITYAFFAIRS AWARDED AS BEST EUROPEAN CYBERSECURITY TECH BLOG AT EUROPEAN
   CYBERSECURITY BLOGGER AWARDS




More Story

IN 2022, MORE THAN 40% OF ZERO-DAY EXPLOITS USED IN THE WILD WERE VARIATIONS OF
PREVIOUS ISSUES

Google’s Threat Analysis Group Google states that more than 40% of zero-day
flaws discovered in 2022 were variants of previous...
Copyright 2021 Security Affairs by Pierluigi Paganini All Right Reserved.
Back to top
 * Home
 * Cyber Crime
 * Cyber warfare
 * APT
 * Data Breach
 * Deep Web
 * Digital ID
 * Hacking
 * Hacktivism
 * Intelligence
 * Internet of Things
 * Laws and regulations
 * Malware
 * Mobile
 * Reports
 * Security
 * Social Networks
 * Terrorism
 * ICS-SCADA
 * POLICIES
 * Contact me

We use cookies on our website to give you the most relevant experience by
remembering your preferences and repeat visits. By clicking “Accept All”, you
consent to the use of ALL the cookies. However, you may visit "Cookie Settings"
to provide a controlled consent.
Cookie SettingsAccept All
Manage consent
Close

PRIVACY OVERVIEW

This website uses cookies to improve your experience while you navigate through
the website. Out of these cookies, the cookies that are categorized as necessary
are stored on your browser as they are essential for the working of basic
functionalities...
Necessary
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly.
This category only includes cookies that ensures basic functionalities and
security features of the website. These cookies do not store any personal
information.
Non-necessary
Non-necessary
Any cookies that may not be particularly necessary for the website to function
and is used specifically to collect user personal data via analytics, ads, other
embedded contents are termed as non-necessary cookies. It is mandatory to
procure user consent prior to running these cookies on your website.
SAVE & ACCEPT


Go to mobile version