Exploitalert - Database of Exploits

Multiple Vulnerabilities in Hummingbird Collaboration

CVE	Category	Price	Severity
CVE-2021-39216	CWE-79	$1000	Critical

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2006-01-21

CPE
cpe:cpe:/a:hummingbird:collaboration

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	0.02192	0.50148

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.
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.

http://cxsecurity.com/ascii/WLB-2006010017

Secure Network - Security Research Advisory Vuln name: Multiple Vulnerabilities in Hummingbird Collaboration Systems affected: Collaboration 5.2.1 and lower versions Severity: Low Local/Remote: Remote Vendor URL: http://www.hummingbird.com/products/enterprise/collaboration/ Author(s): Luca Carettoni - luca.carettoni (at) securenetwork (dot) it [email concealed] Federico Maggi - federico.maggi (at) securenetwork (dot) it [email concealed] Vendor disclosure: 20th December 2005 Vendor acknowledged: 21st December 2005 Public disclosure: 10th January 2006 Advisory number: SN-2006-01 Advisory URL: http://www.securenetwork.it/advisories/ *** SUMMARY *** Hummingbird Collaboration is a Web-based collaborative groupware for teams across and beyond the enterprise. It integrates different works on single projects accessed by several concurrent users, improving efficiency, organization and automated workflow. Regular and registered users can easily access to all project information, documents, discussion threads, tasks list through the Web. It includes several utilities like messaging system, project and file manager and a Web calendar. (a) Cross-Site Scripting (XSS), (b) improper file handling and (c) information disclosure vulnerabilities are present and can be exploited remotely. *** VULNERABILITY DETAILS *** (a) Cross Site Scripting (XSS) A second-order XSS have been found. It allows permanent scripting by uploading malicious client side scripts by embedding them in a HTML page. Hummingbird Collaboration does not verify the content of HTML files during the uploading process. In addition, the collaborative groupware does not force the HTML to be downloaded (e.g. forcing the "Content-Disposition" property): As a result, the HTML page and embedded scripts are normally interpreted and rendered by the user browser. An attacker could (1) plan session hijacking attacks, (2) prepare phishing (a regular user could be tricked by presenting him/her with a fake login page) and (3) affect the usability and the availability of the service. (b) Improper file handling Using a crafted URL, a user could force the download of a previously uploaded file changing its original name. By exploiting this vulnerability, a regular user can be tricked about file content and filename of what he/she's downloading. (c) Information disclosure By inspecting some application responses it is possible to get more information about the parameters type and format. Instead of displaying generic error messages, detailed information are sent to the client (e.g. the parameter must be TRUE or FALSE). Moreover, by inspecting the application cookies is it possible to get internal network information about the IP address of the application server. *** EXPLOIT *** (a) An attacker can simply upload an HTML file with embedded malicious scripts (e.g. Javascript) using the file manager utility. (b) An attacker would need to trick the user into downloading a certain file with a crafted URL, like the following one: https://mySite/hc/hc/fake.doc?d=fc&o=dwnd&fid=1189762&did=89777&x=16080& doc_ext=.txt In this example, the file with id equal to 1189762 is downloaded, changing the name and the type of txt file in "fake.doc". Other techniques (e.g. XSS) make it easy to create a fake link similar to the previous one. (c) In most cases it just involves the inspection of server responses. The following URL shows an example of improper error handling https://mySite/hc/hc?d=mes&x=20433&ntb=[numericParam] using [numericParam] instead of a string parameter. The internal IP address is "encoded" into the cookie name (e.g. com.peopledoc.rhum.JURA_SESSION_ID_192.168.1.1_0.71221182=972323;). *** FIX INFORMATION *** The vendor suggests that updating the software solves this vulnerability, however we have not been able to test the latest versions and to confirm this. Future versions will also integrate a scan engine to detect malicious Javascript. *** WORKAROUNDS *** It should be noted that the server may only be accessed by users who have accounts and who have been correctly authenticated. Users may be restricted to be read-only so that they cannot upload files. ********************* *** LEGAL NOTICES *** ********************* Secure Network (www.securenetwork.it) is an information security company, which provides consulting and training services, and engages in security research and development. We are committed to open, full disclosure of vulnerabilities, cooperating with software developers for properly handling disclosure issues. This advisory is copyright © 2006 Secure Network S.r.l. Permission is hereby granted for the redistribution of this alert, provided that it is not altered except by reformatting it, and that due credit is given. It may not be edited in any way without the express consent of Secure Network S.r.l. Permission is explicitly given for insertion in vulnerability databases and similars, provided that due credit is given to Secure Network The information in the advisory is believed to be accurate at the time of publishing based on currently available information. This information is provided as-is, as a free service to the community by Secure Network research staff. There are no warranties with regard to this information. Secure Network does not accept any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. If you have any comments or inquiries, or any issue with what is reported in this advisory, please inform us as soon as possible. E-mail: securenetwork (at) securenetwork (dot) it [email concealed] GPG/PGP key: http://www.securenetwork.it/pgpkeys/Secure%20Network.asc Phone: +39 0363 560 402

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