Tag: reconnaissance
IP Infrastructure Analysis, Use of Hosting Infra or Corporate IP Ranges (Geo Location Matching) Scrapers have to distribute their traffic via proxy networks or bot nets so as to spread their traffic over a large number of IP addresses and avoid IP-based rate limits that are used to block unwanted scraping. Because of this, scrapers…
Read MoreIntroduction Welcome to the July 2024 installment of the Sensor Intelligence Series, our monthly summary of vulnerability intelligence based on distributed passive sensor data. Last month we observed a massive increase in scanning for CVE-2017-9841 as well as continued increases in scanning for CVE-2023-1389 and scanning for a newly discovered PHP vulnerability – CVE-2024-4577. This…
Read MoreNote the large increase in the number of unique source IPs and source ASNs. Between May and June, 38 different source ASNs dropped from the scanning activity, and 179 were added. This is unusual. While scanners will abandon infrastructure as takedowns happen, or access is revoked, they typically do not make such massive changes without…
Read MoreAttack Destination Ports The following ports in order of prevalence were targeted in the Singapore attacks: 5060 — clear text Session Initiation Protocol (SIP) 23 — Telnet remote management 1433 — Microsoft SQL Server database 81 — Alternate web server port for host-to-host communication 7547 — TCP port used by ISPs to remotely manage…
Read MoreKey Points Only a few days after the ThinkPHP vulnerability was discovered, it is already being exploited on the Internet. Almost 46,000 servers, most of which are located in China, are potential targets for this exploit. Multiple campaigns have been launched simultaneously by different threat actors, which might suggest the infection potential. Campaigns vary from…
Read MoreConclusion Continuing the trend from January, threat actors in February delivered crypto-miners and Mirai variants. Most of the vulnerabilities exploited in February are not new, however, they are known vulnerabilities in popular applications and systems. In these cases, a threat actor is not looking for a specific target, but instead tries to exploit as many…
Read MoreF5 Labs published the first edition of our annual Application Protection Report in July 2018. For that report, we collaborated with Whitehat Security, Loryka, the Ponemon Institute, and Whatcom Community College’s Cybersecurity Center to analyze a wide range of data from 2017, and offer a comprehensive breakdown on the threats, tactics, vulnerabilities and impacts facing…
Read MoreAs we can see in Figure 8, the developers for SG Optimizer added a permission_callback command to the newly registered REST API routes. This indicates that prior to version 5.0.13, the SG Optimizer plugin had various privilege escalation vulnerabilities. Those vulnerabilities allowed any threat actor to send a malicious request to these registered REST API…
Read MoreOracle WebLogic WLS Security Component RCE (CVE-2019-2725) On April 21, 2019, information regarding a deserialization vulnerability in Oracle WebLogic Server was published by KnownSec 404 Team. According to the CVE, the vulnerability exists in the Web Services subcomponent of Oracle WebLogic. Similar to the previous Oracle WebLogic vulnerability discussed above, this new vulnerability also stems…
Read MoreSecurity researchers at F5 Networks constantly monitor web traffic at various locations throughout the world. This allows us to detect “in the wild” malware, and to get an insight into the current threat landscape. Here’s an overview of what we saw in May 2019. Throughout the month of May, the team detected 10 new attack…
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