Vulnerability-Lookup

GHSA-PHCG-H58R-GMCQ

Vulnerability from github – Published: 2026-02-04 20:43 – Updated: 2026-02-04 20:43

Summary

EVE Doesn't Measure Config Partition From 2 Fronts

Details

Impact

PCR14 is not included in the list of PCRs that seal/unseal the vault key. Additionally, the vault key uses SHA1 PCRs instead of SHA256. Thus an attacker with physical access can take out the disk, use a different computer to modify the files in the /config partition, and re-insert the disk and boot without the change being detected by measured boot and remote attestation.

Patches

Fixed in EVE version 9.4.3-lts

Workarounds

None (apart from preventing physical access to the device)

Resources

https://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications https://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a

Severity

5.2 (Medium)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/lf-edge/eve"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20230126065759-d9383a7ee4e1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-43630"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-328",
      "CWE-522"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-04T20:43:16Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nPCR14 is not included in the list of PCRs that seal/unseal the vault key. Additionally, the vault key uses SHA1 PCRs instead of SHA256.\nThus an attacker with physical access can take out the disk, use a different computer to modify the files in the /config partition, and re-insert the disk and boot without the change being detected by measured boot and remote attestation.\n\n### Patches\n\nFixed in EVE version 9.4.3-lts\n\n### Workarounds\n\nNone (apart from preventing physical access to the device)\n\n### Resources\n\nhttps://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications\nhttps://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a",
  "id": "GHSA-phcg-h58r-gmcq",
  "modified": "2026-02-04T20:43:16Z",
  "published": "2026-02-04T20:43:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/lf-edge/eve/security/advisories/GHSA-phcg-h58r-gmcq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43630"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lf-edge/eve/commit/d9383a7ee4e1c39f5c8c6d4a63cb2ebd00695e8a"
    },
    {
      "type": "WEB",
      "url": "https://asrg.io/security-advisories/config-partition-not-measured-from-2-fronts"
    },
    {
      "type": "WEB",
      "url": "https://asrg.io/security-advisories/cve-2023-43630"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lf-edge/eve"
    },
    {
      "type": "WEB",
      "url": "https://help.zededa.com/hc/en-us/articles/43295940828827-TPM-PCR-Index-Security-Implications"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "EVE Doesn\u0027t Measure Config Partition From 2 Fronts"
}

CVE-2023-43630 (GCVE-0-2023-43630)

Vulnerability from cvelistv5 – Published: 2023-09-20 14:37 – Updated: 2024-09-24 18:34

Title

Config Partition Not Measured From 2 Fronts

Summary

PCR14 is not in the list of PCRs that seal/unseal the “vault” key, but due to the change that was implemented in commit “7638364bc0acf8b5c481b5ce5fea11ad44ad7fd4”, fixing this issue alone would not solve the problem of the config partition not being measured correctly. Also, the “vault” key is sealed/unsealed with SHA1 PCRs instead of SHA256. This issue was somewhat mitigated due to all of the PCR extend functions updating both the values of SHA256 and SHA1 for a given PCR ID. However, due to the change that was implemented in commit “7638364bc0acf8b5c481b5ce5fea11ad44ad7fd4”, this is no longer the case for PCR14, as the code in “measurefs.go” explicitly updates only the SHA256 instance of PCR14, which means that even if PCR14 were to be added to the list of PCRs sealing/unsealing the “vault” key, changes to the config partition would still not be measured. An attacker could modify the config partition without triggering the measured boot, this could result in the attacker gaining full control over the device with full access to the contents of the encrypted “vault”

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-24 18:34 UTC

CWE

CWE-522 - Insufficiently Protected Credentials
CWE-922 - Insecure Storage of Sensitive Information
CWE-328 - Use of Weak Hash

Assigner

ASRG icscert root

References

1 reference

URL	Tags
https://asrg.io/security-advisories/cve-2023-43630/

Impacted products

1 product

Vendor	Product	Version
LF-Edge, Zededa	EVE OS	Affected: 9.0.0 , < 9.5.0 (release)

Date Public

2023-09-20 14:35

Credits

Ilay Levi

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.
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