Yappli prior 9.30.0 Custom URL Scheme redirect

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Yappli. It has been classified as critical. Affected is an unknown function of the component Custom URL Scheme Handler. This manipulation causes redirect. This vulnerability is tracked as CVE-2021-20873. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Yappli. Affected by this vulnerability is an unknown code block of the component Custom URL Scheme Handler. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 12/28/2021. The advisory is shared at jvn.jp. This vulnerability is known as CVE-2021-20873 since 12/17/2020. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1204.001 for this issue.

Upgrading to version 9.30.0 eliminates this vulnerability.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 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: Yappli 9.30.0

Timelineinfo

12/17/2020 🔍
12/28/2021 +376 days 🔍
12/28/2021 +0 days 🔍
12/31/2021 +3 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Confirmed

CVE: CVE-2021-20873 (🔍)
GCVE (CVE): GCVE-0-2021-20873
GCVE (VulDB): GCVE-100-189397

Entryinfo

Created: 12/28/2021 08:13
Updated: 12/31/2021 10:01
Changes: 12/28/2021 08:13 (37), 12/31/2021 10:01 (1)
Complete: 🔍
Cache ID: 216::103

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