Black Hat 2021: Rapid7 Experts Share Key Day 2 Takeaways

Here we are again, back for another day of Rapid7 expert debriefings and analysis for some of the most talked-about Black Hat sessions of this year. So without further delay, let’s take it away! Get more DEF CON 2021 insights from our Research team on Tuesday, August 10 Sign up for our What...

Angry Affiliate Leaks Conti Ransomware Gang Playbook

An apparently vengeful affiliate of the Conti Gang has leaked the playbook of the ransomware group after alleging that the notorious cybercriminal organization underpaid him for doing its dirty work. A security researcher shared a comment from an online forum allegedly posted by someone who did...

CVE-2021-37632

SuperMartijn642's Config Lib is a library used by a number of mods for the game Minecraft. The versions of SuperMartijn642's Config Lib between 1.0.4 and 1.0.8 are affected by a vulnerability and can be exploited on both servers and clients. Using SuperMartijn642's Config Lib, servers will send a...

CVE-2021-22925

curl supports the -t command line option, known as CURLOPTTELNETOPTIONSin libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending NEWENV variables, libcurlcould be made to pass on uninitialized data from a stack based...

AZL-6362 CVE-2021-22923 affecting package curl for versions less than 7.76.0-5

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

ALPINE-CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

HTTP/2 Request Smuggling

HTTP Request Smuggling also known as an HTTP Desync Attack has experienced a resurgence in security research recently, thanks in large part to the outstanding work by security researcher James Kettle. His 2019 Blackhat presentation on HTTP Desync attacks exposed vulnerabilities with different...

CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

Several Malware Families Targeting IIS Web Servers With Malicious Modules

A systematic analysis of attacks against Microsoft's Internet Information Services IIS servers has revealed as many as 14 malware families, 10 of them newly documented, indicating that the Windows-based web server software continues to be a hotbed for natively developed malware for close to eight...

Chinese Hackers Target Major Southeast Asian Telecom Companies

Three distinct clusters of malicious activities operating on behalf of Chinese state interests have staged a series of attacks to target networks belonging to at least five major telecommunications companies located in Southeast Asian countries since 2017. "The goal of the attackers behind these...

New APT Hacking Group Targets Microsoft IIS Servers with ASP.NET Exploits

A new highly capable and persistent threat actor has been targeting major high-profile public and private entities in the U.S. as part of a series of targeted cyber intrusion attacks by exploiting internet-facing Microsoft Internet Information Services IIS servers to infiltrate their networks...

Zope 安全漏洞

Zope is a set of object-oriented, open source web application servers written in the Python language by the Zope ZOPE community. A security vulnerability exists in Zope that stems from the presence of a remote code execution issue...

Missing vCenter entries in settings for vCloud Director

Challenge When adding/editing vCloud Director Server in Veeam Backup & Replication the vCenter Servers list is missing vCenter entries. The console log contains the following errors: Error Failed to retrieve VC info Error Failed to parse GUID from string Error Guid should contain 32 digits with 4...

CVE-2021-36386

reportvbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf valist argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any...

CVE-2021-36386

reportvbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf valist argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any...

CVE-2021-36386

reportvbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf valist argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any...

Design/Logic Flaw

reportvbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf valist argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any...

Experts Uncover Several C&C Servers Linked to WellMess Malware

Cybersecurity researchers on Friday unmasked new command-and-control C2 infrastructure belonging to the Russian threat actor tracked as APT29, aka Cozy Bear, that has been spotted actively serving WellMess malware as part of an ongoing attack campaign. More than 30 C2 servers operated by the...