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Advisory details: vulnrichment / CVE-2023-6787
Advisory ID vulnrichment/CVE-2023-6787
Aliases
Summary A flaw was found in Keycloak that occurs from an error in the re-authentication mechanism within org.keycloak.authentication. This flaw allows hijacking an active Keycloak session by triggering a new authentication process with the query parameter "prompt=login," prompting the user to re-enter their credentials. If the user cancels this re-authentication by selecting "Restart login," an account takeover may occur, as the new session, with a different SUB, will possess the same SID as the previous session.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-287 Improper Authentication
System Score Found at
cvssv3.1 6.5
ssvc Track
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2254375
cpe:/a:redhat:build_keycloak:22 Other https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:build_keycloak:22
cpe:/a:redhat:build_keycloak:22::el9 Other https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:build_keycloak:22::el9
cpe:/a:redhat:red_hat_single_sign_on:7 Other https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:red_hat_single_sign_on:7
CVE-2023-6787 https://access.redhat.com/security/cve/CVE-2023-6787
GHSA-c9h6-v78w-52wj https://github.com/keycloak/keycloak/security/advisories/GHSA-c9h6-v78w-52wj
RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1867
RHSA-2024:1868 https://access.redhat.com/errata/RHSA-2024:1868
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at None
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-25T19:40:17Z/ Found at None

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-25T19:40:17Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2023/6xxx/CVE-2023-6787.json

Source Advisory: vulnrichment/CVE-2023-6787

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]