CVE-2024-2698 (GCVE-0-2024-2698)
Vulnerability from cvelistv5 – Published: 2024-06-12 08:03 – Updated: 2026-11-07 13:41
VLAI
EPSS
VEX
Title
Freeipa: delegation rules allow a proxy service to impersonate any user to access another target service
Summary
A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a condition for granting the "forwardable" flag on S4U2Self tickets. Fixing this mistake required adding a special case for the check_allowed_to_delegate() function: If the target service argument is NULL, then it means the KDC is probing for general constrained delegation rules and not checking a specific S4U2Proxy request.
In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being accepted regardless of whether or not there is a matching service delegation rule.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 13:21 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
redhat
CNA
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:3754 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:3755 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:3757 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:3759 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2024-2698 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2270353 | issue-trackingx_refsource_REDHAT |
| https://www.freeipa.org/release-notes/4-12-1.html | |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
4.11.0 , < 4.11.2
(semver)
Affected: 4.12.0 , < 4.12.1 (semver) |
|||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020240528133707.823393f5 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
8080020240530051744.b0a6ceea , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:4.11.0-15.el9_4 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
Unaffected:
0:4.10.1-12.el9_2.2 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.2::appstream cpe:/a:redhat:rhel_eus:9.2::crb |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
Date Public
2024-06-10 00:00
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"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2024:3759"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2024-2698"
},
{
"name": "RHBZ#2270353",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2270353"
},
{
"url": "https://www.freeipa.org/release-notes/4-12-1.html"
}
],
"timeline": [
{
"lang": "en",
"time": "2024-03-19T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2024-06-10T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Freeipa: delegation rules allow a proxy service to impersonate any user to access another target service",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-863: Incorrect Authorization"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2024-2698",
"datePublished": "2024-06-12T08:03:49.013Z",
"dateReserved": "2024-03-19T21:12:01.436Z",
"dateUpdated": "2026-11-07T13:41:49.445Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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.