SOGo up to 2.3.11/3.1.0 Blacklist Filter ics incomplete blacklist

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in SOGo up to 2.3.11/3.1.0. This vulnerability affects unknown code of the component Blacklist Filter. Such manipulation of the argument ics leads to incomplete blacklist. This vulnerability is referenced as CVE-2016-6189. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in SOGo up to 2.3.11/3.1.0. It has been rated as problematic. Affected by this issue is an unknown part of the component Blacklist Filter. The manipulation of the argument ics with an unknown input leads to a incomplete blacklist vulnerability. Using CWE to declare the problem leads to CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. Impacted is confidentiality. CVE summarizes:

Incomplete blacklist in SOGo before 2.3.12 and 3.x before 3.1.1 allows remote authenticated users to obtain sensitive information by reading the fields in the (1) ics or (2) XML calendar feeds.

The bug was discovered 07/09/2016. The weakness was published 02/17/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2016-6189 since 07/09/2016. The attack may be launched remotely. A simple authentication is necessary for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1562.006.

The vulnerability was handled as a non-public zero-day exploit for at least 223 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.3.12 or 3.1.1 eliminates this vulnerability.

Similar entries are available at VDB-96533, VDB-97082, VDB-97101 and VDB-97102. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Incomplete blacklist
CWE: CWE-184 / CWE-183 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SOGo 2.3.12/3.1.1

Timelineinfo

07/09/2016 🔍
07/09/2016 +0 days 🔍
02/17/2017 +223 days 🔍
02/17/2017 +0 days 🔍
02/18/2017 +1 days 🔍
08/15/2020 +1274 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6189 (🔍)
GCVE (CVE): GCVE-0-2016-6189
GCVE (VulDB): GCVE-100-97100
OSVDB: - CVE-2016-6189 - SOGo - Incomplete Blacklist Issue

See also: 🔍

Entryinfo

Created: 02/18/2017 08:58
Updated: 08/15/2020 17:56
Changes: 02/18/2017 08:58 (60), 08/15/2020 17:56 (2)
Complete: 🔍
Cache ID: 216:9BE:103

Once again VulDB remains the best source for vulnerability data.

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