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Some of TOP universities wouldn’t pass cybersecurity exam: left websites vulnerable

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2022-29464
Unrestricted file upload leading to unauthenticated RCE in multiple WSO2 products

CVE-2022-29464 is an unrestricted file upload flaw (CISA classifies it as CWE-22, path traversal) in multiple WSO2 products — including WSO2 API Manager, Identity Server (and its Analytics and as-Key-Manager variants), and Enterprise Integrator — that lets an attacker write arbitrary files, such as JSP webshells, to any location on the server. It is triggered by sending crafted multipart upload requests to the WSO2 Carbon management-console file-upload endpoints, where directory traversal in the upload path allows files to be planted in the web root; requesting the uploaded file then executes it as code. An attacker who can reach a vulnerable management console gains unauthenticated remote code execution with the privileges of the WSO2 server process, which is often root in containerized deployments, enabling webshells, lateral movement, and ransomware staging. Any organization running affected WSO2 releases is exposed, especially where Identity Server (SSO/IAM) or API Manager gateways are internet-facing; the exact affected version ranges are enumerated in the WSO2 vendor advisory. Exploitation is confirmed: CISA added the flaw to the KEV catalog on 2022-04-25 with known ransomware use, and EPSS assigns a roughly 100% probability of exploitation within 30 days, making patching urgent.

Do: Apply the WSO2 updates/patches listed in the WSO2 security advisory for CVE-2022-29464 (or upgrade to the fixed releases named there), per CISA's required action, and limit internet exposure of Carbon management consoles in the meantime. Because ransomware groups have exploited this flaw, hunt for compromise: check web roots for unexpected JSP files or webshells and review access logs for suspicious file-upload requests followed by GETs to uploaded files.

9.8100% KEV ransomware PoC ×2
  • WSO2
largeon the order of tens of thousands of internet-exposed WSO2 management consoles (roughly 10,000–100,000 systems); total deployments including internal installs…
CVE-2023-21529
Authenticated Deserialization RCE in Microsoft Exchange Server (CVE-2023-21529)

CVE-2023-21529 is a deserialization-of-untrusted-data flaw (CWE-502) in on-premises Microsoft Exchange Server that allows remote code execution. Per its CVSS vector, an attacker with valid low-privileged credentials (PR:L) sends crafted untrusted serialized data to the server over the network, requiring no user interaction. Successful exploitation yields code execution on the Exchange server, exposing mail stores and providing a foothold for lateral movement, and related coverage ties it to the fast-moving Storm-1175 ransomware operation, with ransomware use listed as known in CISA's KEV entry. Organizations running self-hosted Exchange Server are in scope; the source data does not list specific affected builds, but the fix shipped in Microsoft's February 2023 Patch Tuesday updates. The flaw was added to CISA's Known Exploited Vulnerabilities catalog on 2026-04-13, EPSS estimates a 62.1% probability of exploitation within 30 days (99th percentile), and no public proof-of-concept is known.

Do: Apply the February 2023 Exchange Server security updates to every on-premises Exchange server; U.S. federal agencies must mitigate or patch per BOD 22-01 following the KEV listing. Because exploitation requires authenticated low-privilege access, inventory exposed OWA/ECP endpoints, review and rotate credentials, and hunt for compromise indicators (unusual processes, webshells, unexpected mailbox activity) given known ransomware use.

8.862% KEV ransomware
  • Microsoft Exchange Server
mass≈50,000–100,000 internet-exposed on-prem Exchange servers; on-prem Exchange plausibly hosts 1M+ users worldwide
Full article1,278 words · extracted from securityaffairs.com · click to collapse

Pierluigi Paganini September 11, 2023

CyberNews researchers discovered that many universities worldwide are leaking sensitive information and are even open to full takeover.

Many universities worldwide, including some of the most prestigious, leave their webpages unpatched, leaking sensitive information, and even open to full takeovers, a Cybernews Research team investigation reveals. Among the 20 cases found, at least six websites belong to the top 100 universities list worldwide.

The Cybernews Research team scrutinized 20 websites with millions of monthly visitors in more detail. An investigation into indexed information from internet-connected devices provided a list of universities with compromised website security. Researchers were able to confirm the entries were accurate.

“Seeing many websites left vulnerable was unexpected, as attacks against universities have historically been very common, starting from DDoS attacks launched by students trying to cancel classes to full-blown ransomware attacks,” Cybernews researchers said.

All of the investigated university websites had more than a million monthly visitors, according to Similarweb. Six universities were ranked in the Top 100 list, and 13 were in the Top 1000 list.

The level of security wasn’t necessarily linked to the university’s size or significance, as both small and large universities displayed similar vulnerabilities. While the findings didn’t include any unprotected databases or vulnerabilities more than a year old, some universities were late to apply security updates. Researchers also found several critical vulnerabilities and very sensitive credentials being leaked.

In the case of the following five universities, leaked information could have allowed a complete website takeover:

  • UTEL University (Mexico)
  • National Taiwan University
  • Walden University
  • University of West Indies (Jamaica)
  • University of California San Diego

In the case of 12 universities (including those mentioned above), it would’ve been possible to obtain private student and teacher information using leaked credentials or exploiting vulnerabilities, such as Remote Code Execution, which are some of the most dangerous attacks:

  • University of Pittsburgh
  • University of British Columbia
  • University of the Andes (Colombia, Universidad de los Andes)
  • Liberty University
  • Old Dominion University
  • Vanderbilt University
  • University of New Hampshire

The last eight universities had other less significant vulnerabilities, such as leaving access to source code with full or partial credentials.

“It’s important to note the scope of the research was not exhaustive, meaning that the vulnerabilities and misconfigurations that we found are relatively easy to find for unskilled attackers and just as easy to exploit. For a more detailed analysis, a deeper penetration testing would be required,” Cybernews researchers noted.

The vulnerabilities identified throughout the research were addressed before the publication of this article.

What did website administrators miss?

Vulnerabilities that could allow a takeover of a website were either due to exposed environment files (.env) or remote code execution (RCE) vulnerabilities.

Three universities had very sensitive information leaking.

The University of California San Diego (UCSD) is a public land-grant research university founded in 1960. It currently enrolls 43,000, and 27 alumni have received Nobel Prizes. Yet, the website of UCSD left database credentials, Cloudflare credentials, WordPress credentials, and email credentials up for grabs. Attackers could use these for a website takeover, redirects to malicious servers, phishing from an official communication channel, and accessing user information.

Similarly, the website of National Taiwan University (NTU), a public research institution with 33,000 students, was leaking JSON Web Token secrets, database credentials, and a git URL with a username. All this could enable attackers to hijack accounts and have admin access.

The Latin American Technology University Online (UTEL) website was leaking JSON Web Token secrets, Google Cloud secrets, credentials, hosts for multiple databases, and Git URL (without credentials). That could allow arbitrary admin account creation and access to files and personal information. UTEL is a private Mexican university for online education founded in 2008.

Two smaller universities, Walden University (CVE-2022-29464) and the University of West Indies, had websites vulnerable to remote code execution that could allow a website takeover.

Files should not be public, and services need to be updated

Environment files should not be left accessible to outsiders as those are configuration files, often containing credentials for some or all third party services, databases, and APIs used by a web application. A malicious actor could use exposed credentials to access private databases and abuse API functions. As discovered, in some cases, the leaked credentials could lead to a full website compromise.

“Developers should make sure that their environment files are not publicly accessible, reset leaked credentials, and consider starting to monitor for such leaks in the future,” Cybernews researchers warn.

Also, compromised credentials for Git repository configuration files, which allow attackers to download and inspect the website’s source code, should be reset.

RCE vulnerabilities, such as WSO2 Web server RCE vulnerability (CVE-2022-29464) and Microsoft Exchange RCE vulnerability (CVE-2023-21529), are documented and require manual or automatic patching or updating of the Microsoft Exchange server.

“Walden University and The University of West Indies were running vulnerable WSO2 web server versions, patched on 2022-04-25, meaning that these servers were not updated in over a year,” Cybernews researchers write.

Other universities, such as Vanderbilt, New Hampshire, and Old Dominion, were more than a month late to patch their Microsoft Exchange servers from the RCE vulnerability.

“In regards to leaked credentials, two universities used default credentials for a given software package, and five used weak, guessable passwords. This reflects poor security practices and hints that credentials used for other applications may also suffer from the same weak password policies.”

Cybernews contacted all universities mentioned in the research. Portland State University resolved the issue when it was reported.

“In our case, the discovered issue was an inconsequential information disclosure of file modification metadata for public files. There is no foreseeable negative impact for the specific instance of the issue in question. The underlying cause was a difference between how our application is deployed and in how our repository of static assets shared across sites are deployed, in the case of application deployment multiple other controls are in place preventing this type of information disclosure,” the university commented.

The University of Pittsburgh responded with a comment, which reads: “Ensuring data security is of utmost importance to the university and we thank you for bringing this matter to our attention. Our information security team took immediate steps to correct this vulnerability upon being notified on April 25th.”

Due to the sensitive nature of our cybersecurity precautions, the university was otherwise unable to provide further comment.

„Old Dominion University (ODU) learned of a vulnerability upon the release of a patch when the first public disclosure was made in February. The vulnerability was not being exploited at the time. To apply the patch, ODU followed its standard risk-based approach designed to manage all operational risks, including those posed by the vulnerability,“ ODU writes in a statement.

Walden University’s answer was as follows:

“Walden University can confirm that we have not had any data leaks or exposure. We have a robust monitoring system committed to protecting the privacy and security information of our students and staff, regularly conducting software updates and scans for potential vulnerabilities to ensure that there are no exposures. If and when false positive vulnerabilities arise due to decommissioned devices, we work closely with our partners to release patches that address them. Additionally, Walden deploys monthly patches to all of the machines within our environment, and the organization undergoes an annual external penetration test to validate our configurations and cyber security controls.”

If you want to know about other flaws discovered by the researchers take a look at the original post at https://cybernews.com/editorial/universities-left-websites-vulnerable-cybersattacks/

About the author: Ernestas Naprys, Senior Journalist at CyberNews

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, TOP universities)



Text extracted automatically; images, tables and formatting may be missing. Original: https://securityaffairs.com/150596/security/top-universities-cybersecurity-failures.html