CVE-2020-10770 (GCVE-0-2020-10770)

Vulnerability from cvelistv5 – Published: 2020-12-15 00:00 – Updated: 2024-08-04 11:14
VLAI Previdian
Summary
A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a keycloak Affected: keycloak 13.0.0
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9a8d566f-bec5-4f7f-9210-818ae582ff76

Vulnerability ID: CVE-2020-10770

Status: Confirmed

Status Updated: 2020-12-15 01:00 CET

Exploited: Yes

Timestamps
First Seen: 2020-12-15
Asserted: 2020-12-15
Scope
Notes: A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter... | Affected: Red Hat / Keycloak | CVSS: 5.3 (MEDIUM) | EPSS: 0.69724 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter...
Cve Id CVE-2020-10770
Vendor Red Hat
Ghsa Id GHSA-JH7Q-5MWF-QVHW
Product Keycloak
Added Date 2020-12-15T00:00:00.000Z
Cvss Score 5.3
Epss Score 0.69724
Previous Ids
Cvss Severity MEDIUM
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99351
Used In Malware unknown
Vulnerability Id CVE-2020-10770
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.