#web

Cybersecurity researchers have uncovered a new stealthy piece of Linux malware that leverages an unconventional technique to achieve persistence on infected systems and hide credit card skimmer code. The malware, attributed to a financially motivated threat actor, has been codenamed sedexp by Aon's Stroz Friedberg incident response services team. "This advanced threat, active since 2022, hides

Plus: The US intelligence community formally blames Iran for Trump campaign hack, aircraft-tracking platform FlightAware says a “configuration error” exposed sensitive user data, and more.

The following presentation at this year's DEF CON was brought to our attention on the Diesel Gitter Channel: > SQL Injection isn't Dead: Smuggling Queries at the Protocol Level > <http://web.archive.org/web/20240812130923/https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Paul%20Gerste%20-%20SQL%20Injection%20Isn't%20Dead%20Smuggling%20Queries%20at%20the%20Protocol%20Level.pdf> > (Archive link for posterity.) Essentially, encoding a value larger than 4GiB can cause the length prefix in the protocol to overflow, causing the server to interpret the rest of the string as binary protocol commands or other data. It appears Diesel _does_ perform truncating casts in a way that could be problematic, for example: <https://github.com/diesel-rs/diesel/blob/ae82c4a5a133db65612b7436356f549bfecda1c7/diesel/src/pg/connection/stmt/mod.rs#L36> This code has existed essentially since the beginning, so it is reasonable to assume that all published versio...

DiCal-RED version 4009 provides a network server on TCP port 2101. This service does not seem to process any input, but it regularly sends data to connected clients. This includes operation messages when they are processed by the device. An unauthenticated attacker can therefore gain information about current emergency situations and possibly also emergency vehicle positions or routes.

DiCal-RED version 4009 makes use of unmaintained third party components with their own vulnerabilities.

DiCal-RED version 4009 is vulnerable to unauthorized log access and other files on the device's file system due to improper authentication checks.

DiCal-RED version 4009 has an administrative web interface that is vulnerable to path traversal attacks in several places. The functions to download or display log files can be used to access arbitrary files on the device's file system. The upload function for new license files can be used to write files anywhere on the device's file system - possibly overwriting important system configuration files, binaries or scripts. Replacing files that are executed during system operation results in a full compromise of the whole device.

DiCal-RED version 4009 provides an administrative web interface that requests the administrative system password before it can be used. Instead of submitting the user-supplied password, its MD5 hash is calculated on the client side and submitted. An attacker who knows the hash of the correct password but not the password itself can simply replace the value of the password URL parameter with the correct hash and subsequently gain full access to the administrative web interface.

DiCal-RED version 4009 has a password that is stored in the file /etc/deviceconfig as a plain MD5 hash, i.e. without any salt or computational cost function.

DiCal-RED version 4009 provides an FTP service on TCP port 21. This service allows anonymous access, i.e. logging in as the user "anonymous" with an arbitrary password. Anonymous users get read access to the whole file system of the device, including files that contain sensitive configuration information, such as /etc/deviceconfig. The respective process on the system runs as the system user "ftp". Therefore, a few files with restrictive permissions are not accessible via FTP.