CVE-2023-6787
Keycloak: session hijacking via re-authentication
No known exploitation. EPSS puts it in the 53rd percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Keycloak vulnerable to session hijacking via re-authentication
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.7% chance of exploitation activity in the next 30 days, which ranks it in the 53rd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 791 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
- Red Hat Single Sign-OnOperating Systems / linux-distro
- Red Hat Build of KeycloakOperating Systems / linux-distro
- Red Hat build of Keycloak 22Security Products / identity-access-mgmt
- Red Hat build of Keycloak 22.0.10Security Products / identity-access-mgmt
- Red Hat Single Sign-On 7Security Products / identity-access-mgmt
- build of keycloakOperating Systems / linux-distro
- keycloakOperating Systems / linux-distro
And 1 more affected product. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Scored 6.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- github.com/keycloak/keycloak/security/advisories/GHSA-c9h6-v78w-52wj
- nvd.nist.gov/vuln/detail/CVE-2023-6787
- access.redhat.com/errata/RHSA-2024:1867
And 10 more references. See all after sign-in
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