Synacor Zimbra Collaboration up to 8.6.0 Patch 9/8.7.11 Patch 2/8.8.7 mailboxd zimbraSSLPrivateKey cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.6.0 Patch 9/8.7.11 Patch 2/8.8.7. It has been declared as problematic. Affected by this issue is the function zimbraSSLPrivateKey of the component mailboxd. Such manipulation leads to cryptographic issue. This vulnerability is documented as CVE-2018-10951. The attack can be executed remotely. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.6.0 Patch 9/8.7.11 Patch 2/8.8.7 (Groupware Software) and classified as critical. Affected by this issue is the function zimbraSSLPrivateKey of the component mailboxd. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality. CVE summarizes:

mailboxd in Zimbra Collaboration Suite 8.8 before 8.8.8; 8.7 before 8.7.11.Patch3; and 8.6 before 8.6.0.Patch10 allows zimbraSSLPrivateKey read access via a GetServer, GetAllServers, or GetAllActiveServers call in the Admin SOAP API.

The bug was discovered 05/09/2018. The weakness was released 05/10/2018 as Bug 108894 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.zimbra.com. This vulnerability is handled as CVE-2018-10951 since 05/09/2018. The exploitation is known to be easy. The attack may be launched remotely. Required for exploitation is a simple authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

Applying the patch 8.6.0.Patch10/8.7.11.Patch3/8.8.8 is able to eliminate this problem.

Entries connected to this vulnerability are available at VDB-117535 and VDB-117534. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
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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OpenVAS ID: 57480
OpenVAS Name: Zimbra Collaboration Suite Multiple Vulnerabilities-May18
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍
Patch: 8.6.0.Patch10/8.7.11.Patch3/8.8.8

Timelineinfo

05/09/2018 🔍
05/09/2018 +0 days 🔍
05/09/2018 +0 days 🔍
05/10/2018 +1 days 🔍
05/10/2018 +0 days 🔍
08/15/2025 +2654 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: Bug 108894
Status: Confirmed

CVE: CVE-2018-10951 (🔍)
GCVE (CVE): GCVE-0-2018-10951
GCVE (VulDB): GCVE-100-117536
See also: 🔍

Entryinfo

Created: 05/10/2018 10:30
Updated: 08/15/2025 22:33
Changes: 05/10/2018 10:30 (66), 06/05/2020 08:55 (1), 08/15/2025 22:33 (19)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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