Exploitalert - Database of Exploits

Backdoor.Win32.BluanWeb / Unauthenticated Remote Command Execution

CVE	Category	Price	Severity
	CWE-287	Not specified	High

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2022-03-12

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.17631	0.83697

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2022030017

Backdoor.Win32.BluanWeb / Unauthenticated Remote Command Execution

Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/30903ccbc6747c0da5a2775884b78def_C.txt Contact: [email protected] Media: twitter.com/malvuln Threat: Backdoor.Win32.BluanWeb Vulnerability: Unauthenticated Remote Command Execution Description: The malware "BlueAngel For WebServer" by "leonshoh" listens on TCP port 80. The malware provides an HTML web-interface that exposes the entire system and creates HTML page with links to delete, logoff or exit the system. Third-party attackers who can reach an infected host can make HTTP GET request to execute commands made available by the backdoor. [C] 255 NTFS 3625.000000 MB 3284.000000 MB [D] [Fixed Disk C] Volume label name Filename length 255 File system NTFS Disk size 3625.000000 MB Free space 3284.000000 MB [Disc D] Family:BluanWeb Type: PE32 MD5: 30903ccbc6747c0da5a2775884b78def Vuln ID: MVID-2022-0506 Disclosure: 03/03/2022 Exploit/PoC: 1) delete any file http://x.x.x.x/unlink_C:/Boot/BCD.LOG 2) DOS backdoor curl http://x.x.x.x/exit 3) sign out the victim machine curl http://x.x.x.x/logoff Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).

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