Recently a serious vulnerability (CVE-2018-0171) was disclosed in Cisco IOS and IOS XE software. An attacker could reload an affected device without authorization, resulting in a denial of service condition or remote code execution. This vulnerability originated from improper validation of packet data. An attack could exploit this vulnerability by...
Category: Emergency Response
Drupal Code Execution Vulnerability Analysis
Recently, Drupal, a popular open-source content management framework, is found to contain a highly critical remote code execution vulnerability, which allows attackers to execute malicious code on a Drupal site, resulting in the site being completely compromised. This vulnerability is assigned CVE-2018-7600. The root cause of this vulnerability is related...
Deep Analysis of Memcached Large DRDoS Attacks – China Telecom DamDDoS & NSFOCUS Jointly Released
Recently, many domestic and foreign security companies and agencies issued warnings about the Memcached Distributed Reflection Denial of Service attack, which aroused the concern of all parties. According to our monitoring, the peak traffic for this attack has now reached 1.35T. On Feb. 27, Memcached's reflection DDoS attacks ranged from hundreds of...
Jackson-databind RCE Vulnerability Handling Guide (CVE-2017-17485)
At the beginning of 2018, jackson-databind was reported to contain another remote code execution (RCE) vulnerability (CVE-2017-17485) that affects versions 2.9.3 and earlier, 2.7.9.1 and earlier, and 2.8.10 and earlier. This vulnerability is caused by jackson-dababind's incomplete blacklist. An application that uses jackson-databind will become vulnerable when the enableDefaultTyping method...
Technical Analysis and Recommended Solution of GoAhead httpd/2.5 to 3.5 LD_PRELOAD Remote Code Execution Vulnerability (CVE-2017-17562)
A remote RCE vulnerability (CVE-2017-17562) was found in all GoAhead Web Server’s versions earlier than 3.6.5. The vulnerability is a result of initializing the environment of forked CGI scripts using untrusted HTTP request parameters, and will affect all users who have CGI support enabled with dynamically linked executables (CGI scripts)....
Technical Analysis and Solution of WebLogic Server (WLS) Component Vulnerability
Overview Recently, NSFOCUS has received a slew of reports from customers in the finance, telecom, and Internet sectors on similar security events. Through analysis, NSFOCUS believes that these events are all associated with the malware-infected WebLogic Server (WLS) host. Specifically, attackers exploit the WLS component vulnerability (CVE-2017-10271) to attack the...
