Virtual Event: Threat Detection and Incident Response Summit - Watch Sessions
Connect with us

Hi, what are you looking for?



Serious Flaw Found in “PL/SQL Developer” Update System

Allround Automations has released a new version of its PL/SQL Developer product to address a security flaw that allows man-in-the-middle (MitM) attackers to serve malicious files and execute arbitrary commands.

Allround Automations has released a new version of its PL/SQL Developer product to address a security flaw that allows man-in-the-middle (MitM) attackers to serve malicious files and execute arbitrary commands.

PL/SQL Developer is an Integrated Development Environment designed for developing stored program units for Oracle databases. The tool checks for updates every time it’s started and if an update is available, a file is downloaded from a specified URL and installed.

Application security consultant Adam Caudill discovered that version 11.0.4 (and likely earlier versions) uses HTTP when fetching updates and it does not validate the downloaded file’s authenticity.

An attacker who is in a privileged position can replace the legitimate URL with one that points to a malicious file, or they can ensure that a malicious file is served at the legitimate URL. Furthermore, the attacker can replace the download link with an arbitrary command that will be automatically executed in the targeted user’s context during the PL/SQL Developer update process.

“This means that a user believing that they are downloading an update, can actually be handing full control over to an attacker – this is a case where not bothering to use HTTPS to secure traffic, can provide multiple methods for an attacker to gain control of the user’s PC,” Caudill explained in a blog post on Sunday. “This is a great example of the importance of using HTTPS for all traffic – it’s not just about privacy, it’s also critical for integrity.”

Caudill has published a simple proof-of-concept that shows how an MitM attacker can exploit the vulnerability, tracked as CVE-2016-2346, to execute an arbitrary command.

According to US-CERT, Allround Automations was informed about the vulnerability in mid-March. The vendor addressed the issue in version 11.0.6 by introducing the use of HTTPS and restricting downloads to the company’s official domain. Users have been advised to update their installations.

Advertisement. Scroll to continue reading.

Related: Several Vulnerabilities Patched in NTP Daemon

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

SecurityWeek’s Threat Detection and Incident Response Summit brings together security practitioners from around the world to share war stories on breaches, APT attacks and threat intelligence.


Securityweek’s CISO Forum will address issues and challenges that are top of mind for today’s security leaders and what the future looks like as chief defenders of the enterprise.


Expert Insights

Related Content


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Data Breaches

OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...


The latest Chrome update brings patches for eight vulnerabilities, including seven reported by external researchers.


Patch Tuesday: Microsoft warns vulnerability (CVE-2023-23397) could lead to exploitation before an email is viewed in the Preview Pane.


Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

IoT Security

A group of seven security researchers have discovered numerous vulnerabilities in vehicles from 16 car makers, including bugs that allowed them to control car...

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.