Synacor Zimbra Collaboration Suite up to 8.8.15 Patch 22/9.0.0 Patch 15 Auth Token /preauth redirectURL

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Synacor Zimbra Collaboration Suite up to 8.8.15 Patch 22/9.0.0 Patch 15. Affected by this issue is some unknown functionality of the file /preauth of the component Auth Token Handler. The manipulation of the argument redirectURL results in redirect. This vulnerability was named CVE-2021-34807. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Synacor Zimbra Collaboration Suite up to 8.8.15 Patch 22/9.0.0 Patch 15 (Groupware Software). Affected is an unknown functionality of the file /preauth of the component Auth Token Handler. The manipulation of the argument redirectURL with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 07/03/2021. The advisory is shared for download at wiki.zimbra.com. This vulnerability is traded as CVE-2021-34807. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1204.001.

Applying the patch 8.8.15 Patch 23/9.0.0 Patch 16 is able to eliminate this problem. The bugfix is ready for download at wiki.zimbra.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 8.8.15 Patch 23/9.0.0 Patch 16

Timelineinfo

06/16/2021 🔍
07/03/2021 +17 days 🔍
07/03/2021 +0 days 🔍
07/09/2021 +6 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: wiki.zimbra.com
Status: Confirmed

CVE: CVE-2021-34807 (🔍)
GCVE (CVE): GCVE-0-2021-34807
GCVE (VulDB): GCVE-100-177948

Entryinfo

Created: 07/03/2021 10:57
Updated: 07/09/2021 17:46
Changes: 07/03/2021 10:57 (41), 07/09/2021 17:46 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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