A Novel APVD Steganography Technique Incorporating Pseudorandom Pixel Selection for Robust Image Security

Steganography is the process of embedding secret information discreetly within a carrier, ensuring secure exchange of confidential data. The Adaptive Pixel Value Differencing APVD steganography method, while effective, encounters certain challenges like the "unused blocks" issue. This problem can...

Joint Data Hiding and Partial Encryption of Compressive Sensed Streams

The paper proposes a method to secure the Compressive Sensing CS streams. It consists in protecting part of the measurements by a secret key and inserting the code into the rest. The secret key is generated via a cryptographically secure pseudo-random number generator CSPRNG and XORed with the...

Code injection

In QUIC in RFC 9000, the Latency Spin Bit specification section 17.4 does not strictly constrain the bit value when the feature is disabled, which might allow remote attackers to construct a covert channel with data represented as changes to the bit value. NOTE: The "Sheridan, S., Keane, A. 2015...

RFC 9000 Security Vulnerabilities

RFC 9000 is a protocol for the fast and secure transmission of data over the Internet. A security vulnerability exists in RFC 9000 that originated to allow a remote attacker to construct a covert channel using data represented as bit-value changes to hide or embed data in seemingly normal network...

Too Log; Didn't Read — Unknown Actor Using CLFS Log Files for Stealth

The Mandiant Advanced Practices team recently discovered a new malware family we have named PRIVATELOG and its installer, STASHLOG. In this post, we will share a novel and especially interesting technique the samples use to hide data, along with detailed analysis of both files that was performed...

Security Researcher Hides ZIP, MP3 Files Inside PNG Files on Twitter

A security researcher has discovered a novel steganography technique for hiding data inside a Portable Network Graphics .PNG image file posted on Twitter, a tactic that could be exploited by threat actors to hide malicious activity. Researcher David Buchanan heralded his discovery on Twitter...

Steganographer - Hide Files Or Data In Image Files

This Module will hide files inside images currenlty PNG and export the modified image to disk The maximum size of file which can be hidden inside an image depends on the dimension of the image. maxfilesize = heightofimage widthofimage 6 / 8 bytes '100k words.txt' is hidden in 'originalimage.png'...

50m-ctf: LFI on Accounting server and RCE on FliteThermostat admin server

Summary: An attacker is able to download local files on the Accounting server due leveraging improper input sanitization in the Invoice PDF generator. In the same fashion an attacker is also able to issue server-side requests on the Accounting server through user-controlled CSS, possibly leading ...

S3QL Replay Attack Vulnerability

S3QL is a file system for storing online data. The system supports Amazon S3, SFTP servers, and more. A security vulnerability exists in the 'checksumbasicmapping' function in S3QL versions prior to 2.27. An attacker can exploit the vulnerability to display an old version of the metadata database...

UBUNTU-CVE-2018-12088

S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is...

CVE-2018-2389

Under certain conditions a malicious user can inject log files of SAP Internet Graphics Server IGS, 7.20, 7.20EXT, 7.45, 7.49, 7.53, hiding important information in the log file...

LSB-Steganography - Python program to steganography files into images using the Least Significant Bit

Python program based on stegonographical methods to hide files in images using the Least Significant Bit technique. I used the most basic method which is the least significant bit. A colour pixel is composed of red, green and blue, encoded on one byte. The idea is to store information in the firs...

PSFTPd Windows FTP Server Command Injection Vulnerability

PSFTPd Windows FTP Server is a suite of FTP server software. The software supports protocols such as FTP, FTPS and SFTP. A command injection vulnerability exists in PSFTPd Windows FTP Server version 10.0.4 Build 729. An attacker can exploit this vulnerability to hide data and create arbitrary...

OpenStego - Steganography Application (Data Hiding and Watermarking)

OpenStego is a steganography application that provides two functionalities: 1. Data Hiding: It can hide any data within a cover file e.g. images. 2. Watermarking: Watermarking files e.g. images with an invisible signature. It can be used to detect unauthorized file copying. Usage For GUI: java -j...

Researchers Propose New Steganography System for Hiding Data

A group of researchers has developed a new application that can hide sensitive data on a hard drive without encrypting it or leaving any obvious signs that the data is present. The new steganography system relies on the old principle of hiding valuables in plain sight. Developed by a group of...

Security crisis crack USB disk encryption tool encryption principles-vulnerability warning-the black bar safety net

The use of U disk, mobile hard disk encryption tool encryption folder, I use file Sniffer tool also can't see the encrypted real files, when with a Duba scanning found, it seems like these files are hidden stored in/Thumbs. dn/7./ Where that 7. The 7 is sometimes other numbers, but I directly so...

How in does not support the Upload file to the forum file upload-vulnerability warning-the black bar safety net

How in the does not support file upload Forum, Upload File To achieve this goal, there is a prerequisite for this forum to be able to upload pictures. Commonly used Picture format is generally as JPEG, this format is FFD9 as the end-of-file Mark, as to which after the Deposit of anything on the...

CVE-2005-1578

EnCase Forensic Edition 4.18a does not support Device Configuration Overlays DCO, which allows attackers to hide information without detection...