76 matches found
Fedora: Security Advisory for opensmtpd (FEDORA-2020-31216ab928)
The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
[SECURITY] Fedora 30 Update: opensmtpd-6.6.2p1-1.fc30
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defi ned by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol. Started out of dissatisfaction with other implementations, OpenSMTP...
Phorpiex Botnet Sending Out Millions of Sextortion Emails Using Hacked Computers
A decade-old botnet malware that currently controls over 450,000 computers worldwide has recently shifted its operations from infecting machines with ransomware or crypto miners to abusing them for sending out sextortion emails to millions of innocent people. Extortion by email is growing...
SMTP end-of-response out-of-bounds read
libcurl contains a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to smtpendofresp is not null-terminated and contains no character ending the parsed number, and len is set to 5, then the strtol call reads beyond the allocated buffer. The read...
SMTP send heap buffer overflow
curl might overflow a heap based memory buffer when sending data over SMTP and using a reduced read buffer. When sending data over SMTP, curl allocates a separate "scratch area" on the heap to be able to escape the uploaded data properly if the uploaded data contains data that requires it. The si...
Detailed analysis of the PHP mail()function exploit techniques-vulnerability warning-the black bar safety net
This white paper aims to eliminate about PHP mail function in exploit the limitations of some of the misunderstandings, and demonstrate the use of the further development. It provides several on the PHP mailfunction of the new exploit and bypass the technology of the vector, in major PHP e-mail...
python: smtplib StartTLS stripping attack
It was found that Python's smtplib library did not return an exception when StartTLS failed to be established in the SMTP.starttls function. A man in the middle attacker could strip out the STARTTLS command without generating an exception on the Python SMTP client application, preventing the...
Ruby: SMTP command injection
Net::SMTP is vulnerable to RCPT TO/MAIL FROM injection due to lack of input validation and conformance to the SMTP protocol. Publicly disclosed already: http://www.mbsd.jp/Whitepaper/smtpi.pdf People are wrongly assigning this to the mail gem http://rubysec.com/advisories/OSVDB-131677/ and thinki...
[SECURITY] Fedora 22 Update: opensmtpd-5.7.3p1-1.fc22
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defi ned by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol. Started out of dissatisfaction with other implementations, OpenSMTP...
SMTP-VRFY
This is a simple script to help you enumarate and discover valid email addresses on a smtp server, it uses a python script and a dictionary brute-force based attack. import socket import sys s=socket.socketsocket.AFINET, socket.SOCKSTREAM connect=s.connectsys.argv1,intsys.argv2 s.send'VRFY ' +...
Youngzsoft CMailServer 4.0 RCPT TO Buffer Overflow Vulnerability
No description provided by source. source: http://www.securityfocus.com/bid/7548/info A buffer overflow vulnerability has been reported for CMailServer. The vulnerability exists due to insufficient bounds checking when parsing e-mail headers. Specifically, an overly long RCPT TO e-mail header wil...
Floosietek FTGate PRO 1.22 SMTP MAIL FROM Buffer Overflow Vulnerability
No description provided by source. source: http://www.securityfocus.com/bid/7506/info A buffer overflow vulnerability has been reported for Floosietek FTGate PRO mail server. The vulnerability exists when the mail server attempts to process overly long SMTP 'Mail From' arguments. Due to the natur...
cURL Buffer Overflow Vulnerability
A remotely exploitable buffer overflow vulnerability was discovered in the libcurl POP3 and SMTP protocol handlers. Proper exploitation can allow for arbitrary code execution. cURL buffer overflow Wed 06 February 2013 Volema found remotely exploitable buffer overflow vulnerability in libcurl POP3...
cURL Buffer Overflow
cURL buffer overflow Wed 06 February 2013 Volema found remotely exploitable buffer overflow vulnerability in libcurl POP3, SMTP protocol handlers which lead to code execution RCE. When negotiating SASL DIGEST-MD5 authentication, the function Curlsaslcreatedigestmd5message uses the data provided...
CVE-2012-0036
curl and libcurl 7.2x before 7.24.0 do not properly consider special characters during extraction of a pathname from a URL, which allows remote attackers to conduct data-injection attacks via a crafted URL, as demonstrated by a CRLF injection attack on the 1 IMAP, 2 POP3, or 3 SMTP protocol...
CVE-2012-0036
curl and libcurl 7.2x before 7.24.0 do not properly consider special characters during extraction of a pathname from a URL, which allows remote attackers to conduct data-injection attacks via a crafted URL, as demonstrated by a CRLF injection attack on the 1 IMAP, 2 POP3, or 3 SMTP protocol...
postfix -- plaintext command injection with SMTP over TLS
Wietse Venema has discovered a software flaw that allows an attacker to inject client commands into an SMTP session during the unprotected plaintext SMTP protocol phase, such that the server will execute those commands during the SMTP- over-TLS protocol phase when all communication is supposed to...
Security Best Practice: Protect Yourself from Multiple SMTP Vulnerabilities
Simple Mail Transfer Protocol SMTP is an Internet standard for electronic mail e-mail transmission across Internet Protocol IP networks. SMTP is specified for outgoing mail transport and uses TCP port 25. There are several serious security limitations with the SMTP protocol that allow malicious...
The use of injection techniques to attack the mail server and defenses(a)-vulnerability warning-the black bar safety net
This article will detail through the talk to mail server communication of a Web application, i.e., the webmail application to inject some mail protocolsIMAP and SMTP Protocolcommands to attack a mail server of the principles, methods and defenses. A Webmail application role Webmail app through IM...
[SVRT-04-08] Vulnerability in WireShark 1.0.4 for DoS Attack
Vulnerability in WireShark 1.0.4 for DoS Attack 1. General Information On Nov 2008, Security Vulnerability Research Team of Bkis SVRT-Bkis has detected a vulnerability underlying WireShark 1.0.4 lastest version. The flaw is in the function processing SMTP protocol and enables hacker to perform a...