Kerio MailServer 6.7.3 input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Kerio MailServer 6.7.3. This affects an unknown function. This manipulation causes input validation. This vulnerability is handled as CVE-2011-1506. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Kerio MailServer 6.7.3 (Mail Server Software) and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The STARTTLS implementation in Kerio Connect 7.1.4 build 2985 and MailServer 6.x does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411. NOTE: some of these details are obtained from third party information.

The weakness was released 03/22/2011 by Wietse Venema as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2011-1506. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 52611 (SMTP Service STARTTLS Plaintext Command Injection), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SMTP problems.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (65932), Tenable (52611), SecurityFocus (BID 46767†) and Vulnerability Center (SBV-30734†). Entries connected to this vulnerability are available at VDB-56855, VDB-56854, VDB-56853 and VDB-56843. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 52611
Nessus Name: SMTP Service STARTTLS Plaintext Command Injection
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 901194
OpenVAS Name: Kerio Products STARTTLS Plaintext Command Injection Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

03/07/2011 🔍
03/07/2011 +0 days 🔍
03/22/2011 +14 days 🔍
03/22/2011 +0 days 🔍
03/22/2011 +0 days 🔍
03/30/2011 +8 days 🔍
03/20/2015 +1451 days 🔍
12/01/2024 +3544 days 🔍

Sourcesinfo

Vendor: kerio.com

Advisory: kb.cert.org
Researcher: Wietse Venema
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1506 (🔍)
GCVE (CVE): GCVE-0-2011-1506
GCVE (VulDB): GCVE-100-56911
CERT: 🔍
X-Force: 65932
SecurityFocus: 46767 - Multiple Vendors STARTTLS Implementation Plaintext Arbitrary Command Injection Vulnerability
Secunia: 43678
Vulnerability Center: 30734 - Kerio Connect and MailServer Allows Man-in-the-Middle Attacks, Medium

See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 12/01/2024 23:01
Changes: 03/20/2015 16:16 (55), 03/20/2017 09:23 (13), 10/21/2021 07:52 (5), 10/21/2021 07:58 (1), 12/01/2024 23:01 (15)
Complete: 🔍
Cache ID: 216:BB7:103

Be aware that VulDB is the high quality source for vulnerability data.

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