A Deep Dive into Lokibot Infection Chain

By Irshad Muhammad, with contributions from Holger Unterbrink. News summary Lokibot is one of the most well-known information stealers on the malware landscape. In this post, we'll provide a technical breakdown of one of the latest Lokibot campaigns.Talos also has a new script to unpack the...

UBUNTU-CVE-2020-29529

HashiCorp go-slug up to 0.4.3 did not fully protect against directory traversal while unpacking tar archives, and protections could be bypassed with specific constructions of multiple symlinks. Fixed in 0.5.0...

Using Speakeasy Emulation Framework Programmatically to Unpack Malware

Andrew Davis recently announced the public release of his new Windows emulation framework named Speakeasy. While the introductory blog post focused on using Speakeasy as an automated malware sandbox of sorts, this entry will highlight another powerful use of the framework: automated malware...

Barco wePresent Hardcoded API Credentials

Vulnerability Details Affected Vendor: Barco Affected Product: wePresent WiPG-1600W Affected Version: 2.5.1.8, 2.5.0.25, 2.5.0.24, 2.4.1.19 Platform: Embedded Linux CWE Classification: CWE-798: Use of Hard-coded Credentials CVE ID: CVE-2020-28329 2. Vulnerability Description Barco wePresent...

Medium: ruby20

Issue Overview: An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats. CVE-2018-16396 The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4...

Cellebrite EPR Decryption Hardcoded AES Key Material Vulnerability

The Cellebrite UFED Physical device relies on key material hardcoded within both the executable code supporting the decryption process and within the encrypted files themselves by using a key enveloping technique. The recovered key material is the same for every device running the same version of...

CVE-2020-7506

A CWE-200: Information Exposure vulnerability exists in Easergy T300, Firmware V1.5.2 and prior, which could allow an attacker to pack or unpack the archive with the firmware for the controller and modules using the usual tar archiver resulting in an information exposure...

DEBIAN-CVE-2019-20805

plxelf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PTDYNAMIC segment...

CVE-2019-20805

The CVE-2019-20805 issue affects UPX (PackLinuxElf32/64: p_lx_elf.cpp) prior to 3.96, caused by an integer overflow during unpacking in a PT_DYNAMIC segment. Public documents describe a heap/string vulnerability surface through crafted input impacting UPX’s ELF packing logic, with the CVSS metric...

CVE-2019-20805

plxelf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PTDYNAMIC segment...

Loncom packer: from backdoors to Cobalt Strike

The previous story described an unusual way of distributing malware under disguise of an update for an expired security certificate. After the story went out, we conducted a detailed analysis of the samples we had obtained, with some interesting findings. All of the malware we examined from the...

welpwn

This is an exploit module for a vulnerability in a binary, targeting a heap-based overflow in a baby heap implementation. The exploit is designed to execute a shell on the vulnerable system. The exploit uses a combination of alloc, show, and delete functions to manipulate the heap and create a...

Internet Bug Bounty: CVE-2020-10938-buffer overflow/out-of-bounds write in compress.c:HuffmanDecodeImage()

Hello, There is an out-of-bounds write that is likely exploitable while performing Huffman decoding of Fax images. The technical details are as follows. Type: integer underflow produces out of bounds heap/etc write Platform: 32-bit Details: 390 MagickExport MagickPassFail HuffmanDecodeImageImage...

CVE-2018-16396

An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats...

CVE-2020-9308

archivereadsupportformatrar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header such as a header size of zero, leading to a SIGSEGV or possibly unspecified other impact...

CVE-2020-9308

archivereadsupportformatrar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header such as a header size of zero, leading to a SIGSEGV or possibly unspecified other impact...

CVE-2010-3440

babiloo 2.0.9 before 2.0.11 creates temporary files with predictable names when downloading and unpacking dictionary files, allowing a local attacker to overwrite arbitrary files...

Insecure Temporary File Storage

drift-mongodb-serverplugin uses an insecure temporary file storage when unpacking zip files. The files are unpacked to a world-writable directory which could potentially allow a local attacker to modify and tamper with the files, leading to unexpected behavior in the application...

CVE-2013-4374

An insecurity temporary file vulnerability exists in RHQ Mongo DB Drift Server through 2013-09-25 when unpacking zipped files...

USN-4146-2 clamav vulnerabilities

USN-4146-1 fixed several vulnerabilities in ClamAV. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that ClamAV incorrectly handled unpacking ZIP files. A remote attacker could possibly use this issue to cause...