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1. Blaster RPC exploit solution [post]
after the upgrade of blaster RPC exploit, it will jump out of the dialog box of rising discovery vulnerability: rising monitoring discovery vulnerability attack. Vulnerability path: C: &# 92; WINNT\ system32\ Svchost.exe vulnerability Name: blaster RPC exploit. There's no virus. But why is it still prompting. Please ask how to solve this vulnerability, and the ports where the vulnerability is attacked are different. What is the vulnerability patch of blaster RPC exploit? Where can I find it
re: as long as it is attacked, the monitoring of Rising antivirus software will report., Please scan with security tools to see which patches are missing. If all the installation is completed, you don't need to pay attention to the log about "blaster RPC exploit ID: 720" in the monitor

Q: Hello prawn, my system is XP. Rising constantly prompts that there is a vulnerability name of blaster RPC exploit. The path is C: winntsystem32svchost.exe. How to solve this problem, what patches are available, and where to download them

detailed description:

note: this vulnerability is different from the vulnerability used by MS blaster and Nachi in August, and the patch
kb823980 is invalid for this vulnerability
remote procere call (RPC) is a protocol used by Windows operating system. RPC provides an internal process communication mechanism,
allows programs running on a computer to seamlessly execute the code in the remote system. The protocol itself originates from the open software foundation
(OSF) RPC Protocol, but adds some Microsoft specific extensions<

recently, we found that there are three
vulnerabilities in the components used to handle the DCOM interface in the rpcss service of windows, two of which are buffer overflow vulnerabilities and one is denial of service vulnerability. They are:

1, windows RPC DCOM interface long file name Heap Buffer Overflow Vulnerability
windows RPC has a buffer overflow vulnerability in the processing of Distributed Component Object Model (DCOM) interface. The DCOM implementation of windows
does not check the length when processing a parameter. By submitting an ultra long (hundreds of bytes) file name parameter
it can cause heap overflow and cause rpcss service to crash. If the submitted data is constructed carefully, the code can be run with local system permission
on the system. Successful exploitation of this vulnerability allows attackers to take any action in the system, including installing programs, stealing changes or
deleting data, or creating new accounts with full privileges

2. Windows RPC DCOM interface message length domain Heap Buffer Overflow Vulnerability
windows RPC DCOM interface's lack of check on the message length domain leads to heap based overflow, and remote attackers can
use these vulnerabilities to execute arbitrary instructions on the system with local system permissions
the vulnerability essentially affects the DCOM interface using RPC, which handles DCOM pairs sent by the client machine to the server, such as activation requests (such as uncpaths). Attackers exploit these vulnerabilities by sending malformed RPC DCOM requests to the target. This vulnerability can be used to execute arbitrary instructions with local system permissions. Successfully exploiting this vulnerability, the attacker can perform arbitrary operations on the system, such as installing programs, viewing or changing, deleting data, or creating an account with system administrator privileges

3. Windows RPC DCOM interface denial of service and privilege escalation vulnerability
there is a denial of service defect in Windows RPC DCOM service. A remote attacker can cause a denial of service attack by sending a specific message, while a local attacker can send a malformed message to the server__ Remote getclassobject
interface can cause an empty instruction to be sent to performscmstage function, which will cause denial of service attack, and attackers can hijack epmapper's pipeline to achieve the purpose of privilege promotion<

impact system:

Microsoft Windows NT workstation 4.0
Microsoft Windows NT server? 4.0
Microsoft Windows NT Server 4.0, Terminal server edition
Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Server 2003

risk: high

solution:

temporary solution:
use firewall to block the following ports:
135 / UDP
137 / UDP
138 / UDP
445 / UDP

135 / TCP
139 / TCP
445 / TCP < B R / > 593 / TCP

install the corresponding patch:
Microsoft has issued a special security bulletin (ms03-039) and related patches for this purpose, which you can download from our website.
e to this vulnerability, it has a significant impact, We suggest that you download and install the patch immediately:

WinNT workstation 4.0 patch:

Chinese Version English version

WinNT Server 4.0 patch:
Chinese Version English version

WIN2000 patch:
Chinese Version English version

WinXP patch:
Chinese Version English version

Win2003 patch:
Chinese Version English version Text edition

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4. Unknown_Error

5.

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