Google Sign-In with Google API C++ Client unusual condition

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability classified as problematic has been found in Google Sign-In with Google API C++ Client (Automation Software) (version now known). This affects some unknown processing. The manipulation with an unknown input leads to a unusual condition vulnerability. CWE is classifying the issue as CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. This is going to have an impact on availability. The summary by CVE is:

An unhandled exception vulnerability exists during Google Sign-In with Google API C++ Client before 2019-04-10. It potentially causes an outage of third-party services that were not designed to recover from exceptions. On the client, ID token handling can cause an unhandled exception because of misinterpretation of an integer as a string, resulting in denial-of-service and then other users can no longer login/sign-in to the affected third-party service. Once this third-party service uses Google Sign-In with google-api-cpp-client, a malicious user can trigger this client/auth/oauth2_authorization.cc vulnerability by requesting the client to receive the ID token from a Google authentication server.

The weakness was shared 05/30/2019. This vulnerability is uniquely identified as CVE-2018-20840 since 05/30/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.8
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unusual condition
CWE: CWE-754
CAPEC: 🔍
ATT&CK: 🔍

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: 🔍

Patch: github.com

Timelineinfo

04/10/2019 🔍
05/30/2019 +50 days 🔍
05/30/2019 +0 days 🔍
05/31/2019 +1 days 🔍
09/25/2023 +1578 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 57
Status: Not defined

CVE: CVE-2018-20840 (🔍)

Entryinfo

Created: 05/31/2019 06:45 AM
Updated: 09/25/2023 10:18 AM
Changes: 05/31/2019 06:45 AM (35), 06/17/2020 10:59 AM (18), 09/25/2023 10:12 AM (6), 09/25/2023 10:18 AM (1)
Complete: 🔍
Cache ID: 18:320:40

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