How Does DMARC Prevent Phishing?

DMARC is a global standard for email authentication. It allows senders to verify that the email really comes from whom it claims to come from. This helps curb spam and phishing attacks, which are among the most prevalent cybercrimes of today. Gmail, Yahoo, and many other large email providers hav...

[SECURITY] Fedora 35 Update: libspf2-1.2.11-1.20210922git4915c308.fc35

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

QueenSono - Golang Binary For Data Exfiltration With ICMP Protocol

QueenSono tool only relies on the fact that ICMP protocol isn't monitored. It is quite common. It could also been used within a system with basic ICMP inspection ie. frequency and content length watcher. Try to imitate PyExfil and others with the idea that the target machine does not necessary ha...

notionalCallback can be tricked by anyone

Handle pauliax Vulnerability details Impact Anyone can call function notionalCallback with arbitrary params and pass the auth check. The only auth check can be easily bypassed by setting sender param to the address of this contract. It allows to choose any parameter that I want: function...

The vulnerability of the SPF libspf2 library, related to the execution of operations outside the buffer’s boundaries in memory, allows attackers to execute arbitrary code.

The vulnerability of the SPF libspf2 library lies in the execution of operations outside the buffer boundaries in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code by overflowing the buffer stack...

CVE-2021-38142

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured is not...

CVE-2021-38142

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured is not...

Remote code execution

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured is not...

CVE-2021-38142

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured is not...

CVE-2021-38142

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured is not...

CVE-2021-38142

Barco MirrorOp Windows Sender prior to version 2.5.3.65 is vulnerable due to a cleartext HTTP upgrade mechanism that is not protected with TLS. An attacker on the local network can abuse this insecure upgrade process to achieve remote code execution on any computer attempting to update Windows Se...

Barco MirrorOp Windows Sender 代码注入漏洞

Barco MirrorOp Windows Sender is a mirroring software application for wePresent systems. A security vulnerability exists in Barco MirrorOp Windows Sender versions prior to 2.5.3.65, which stems from the software's use of clear-text HTTP, thus allowing malware upgrades. Due to the insecure upgrade...

CVE-2021-40529

The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the...

Botan 加密问题漏洞

Botan is a library of cryptographic algorithms written in C++. It supports a variety of algorithms such as AES, DES, SHA-1, RSA, DSA and Diffie-Hellman. A security vulnerability exists in Botan 2.18.1 and earlier versions, which stems from the fact that a generator public key defined by the...

_transfer what happens if sender==recipient

Handle gpersoon Vulnerability details Impact The function transfer of nTokenAction.sol uses temporary variables and updates the sender and recipient separately. This is a dangerous constructions because the update of the recipient could overwrite the update of the sender. This has led to several...

Widespread credential phishing campaign abuses open redirector links

Microsoft has been actively tracking a widespread credential phishing campaign using open redirector links. Attackers combine these links with social engineering baits that impersonate well-known productivity tools and services to lure users into clicking. Doing so leads to a series of...

CVE-2021-30998

A S/MIME issue existed in the handling of encrypted email. This issue was addressed with improved selection of the encryption certificate. This issue is fixed in iOS 15.2 and iPadOS 15.2. A sender's email address may be leaked when sending an S/MIME encrypted email using a certificate with more...

Apple iOS和Apple iPadOS 安全漏洞

Apple iOS and Apple iPadOS are products of Apple Inc. Apple iOS is an operating system developed for mobile devices, and Apple iPadOS is an operating system for the iPad tablet computer. A security vulnerability exists in Apple iOS and Apple iPadOS that stems from an S/MIME issue when handling...

DEBIAN-CVE-2021-20314

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages...

libspf2 缓冲区错误漏洞

libspf2 is a library that allows email systems such as Sendmail, Postfix, Exim, Zmailer, and MS Exchange to check SPF records and ensure that email is authorized from its domain. libspf2 suffers from a buffer overflow vulnerability, which stems from the fact that libspf2's SPF macro can trigger a...