Vulnerability-Lookup

SUSE-SU-2026:3895-1

Vulnerability from csaf_suse - Published: 2026-08-31 14:58 - Updated: 2026-09-17 16:44

Summary

Security update for yast2-auth-client

Severity

Important

Notes

Title of the patch: Security update for yast2-auth-client

Description of the patch: This update for yast2-auth-client fixes the following issue: Update to version 4.5.5. - CVE-2026-59681: OS command injection via unsanitized Organizational Unit/dnsHostName in AD join (AutoYaST-reachable) (bsc#1272775).

Patchnames: SUSE-2026-3895,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3895,SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-3895,SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3895,SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3895

CVE-2026-59681

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Recommended 6 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch	—	Vendor Fix

Threats

Impact important

References

10 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1272775	self
https://bugzilla.suse.com/1274612	self
https://bugzilla.suse.com/1274806	self
https://www.suse.com/security/cve/CVE-2026-59681/	self
https://www.suse.com/security/cve/CVE-2026-59681	external
https://bugzilla.suse.com/1272775	external

JSON

To clipboard

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        },
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  "vulnerabilities": [
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        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A OS command injection vulnerability in yast2-auth-client allows an attacker who controls Active Directory configuration values to execute arbitrary commands as root on the configured host.\n Auth::AuthConf in src/lib/auth/authconf.rb assembles the Samba net ads join, net ads lookup -S and net ads testjoin invocations by interpolating configuration values into a single command string and passing that string to Open3.popen2 / Open3.capture2, which causes Ruby to run it through /bin/sh. The Organizational Unit (ou), dnshostname, AD user name and AD domain name values are neither validated nor shell-quoted.",
          "title": "CVE description"
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          "SUSE Linux Enterprise High Performance Computing 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
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          "summary": "SUSE Bug 1272775 for CVE-2026-59681",
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        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server 15 SP5-LTSS:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP5:yast2-auth-client-0:4.5.5-150500.3.9.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-08-31T14:58:07Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-59681"
    }
  ]
}

CVE-2026-59681 (GCVE-0-2026-59681)

Vulnerability from cvelistv5 – Published: 2026-09-01 09:38 – Updated: 2026-09-02 03:55

Title

yast2-auth-client: OS command injection via unsanitized Organizational Unit / dnsHostName in AD join

Summary

A OS command injection vulnerability in yast2-auth-client allows an attacker who controls Active Directory configuration values to execute arbitrary commands as root on the configured host. Auth::AuthConf in src/lib/auth/authconf.rb assembles the Samba net ads join, net ads lookup -S and net ads testjoin invocations by interpolating configuration values into a single command string and passing that string to Open3.popen2 / Open3.capture2, which causes Ruby to run it through /bin/sh. The Organizational Unit (ou), dnshostname, AD user name and AD domain name values are neither validated nor shell-quoted.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 00:00 UTC

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')

Assigner

suse mitre root

References

1 reference

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1272775	issue-tracking

Impacted products

1 product

Vendor	Product	Version
SUSE	yast2-auth-client	Affected: 0 , ≤ 5.0.4 (semver)

Date Public

2026-09-01 09:24

Credits

Alperen Keskin

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-59681",
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T00:00:00+00:00",
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              "value": "A OS command injection vulnerability in yast2-auth-client allows an attacker who controls Active Directory configuration values to execute arbitrary commands as root on the configured host.\u003cbr\u003e Auth::AuthConf in src/lib/auth/authconf.rb assembles the Samba net ads join, net ads lookup -S and net ads testjoin invocations by interpolating configuration values into a single command string and passing that string to Open3.popen2 / Open3.capture2, which causes Ruby to run it through /bin/sh. The Organizational Unit (ou), dnshostname, AD user name and AD domain name values are neither validated nor shell-quoted."
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      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78 Improper neutralization of special elements used in an OS command (\u0027OS command injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-01T09:38:15.527Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1272775"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "yast2-auth-client: OS command injection via unsanitized Organizational Unit / dnsHostName in AD join",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-59681",
    "datePublished": "2026-09-01T09:38:15.527Z",
    "dateReserved": "2026-07-06T11:59:28.119Z",
    "dateUpdated": "2026-09-02T03:55:32.811Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

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.

Action not permitted

SUSE-SU-2026:3895-1

CVE-2026-59681 (GCVE-0-2026-59681)

Tags

Sightings

Nomenclature

Related by attack behaviour