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GHSA-63P8-63FF-XR65

Vulnerability from github – Published: 2022-05-24 22:01 – Updated: 2022-07-03 00:00

Summary

ZipSlip vulnerability in bblfshd

Details

bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a "zipslip" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.

Severity

9.1 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-32825"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-23",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-16T19:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a \"zipslip\" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.",
  "id": "GHSA-63p8-63ff-xr65",
  "modified": "2022-07-03T00:00:24Z",
  "published": "2022-05-24T22:01:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32825"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bblfsh/bblfshd/pull/341"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bblfsh/bblfshd/commit/4265465b9b6fb5663c30ee43806126012066aad4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/bblfsh/bblfshd"
    },
    {
      "type": "ADVISORY",
      "url": "https://securitylab.github.com/advisories/GHSL-2020-258-zipslip-bblfshd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ZipSlip vulnerability in bblfshd"
}

CVE-2021-32825 (GCVE-0-2021-32825)

Vulnerability from cvelistv5 – Published: 2021-08-16 19:00 – Updated: 2024-08-03 23:33

Title

ZipSlip vulnerability in bblfshd

Summary

Severity

2.7 (Low)


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

CWE

CWE-23 - Relative Path Traversal

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://securitylab.github.com/advisories/GHSL-20…	x_refsource_CONFIRM
https://github.com/bblfsh/bblfshd/pull/341	x_refsource_MISC
https://github.com/bblfsh/bblfshd/commit/4265465b…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
bblfsh	bblfshd	Affected: < 4265465b9b6fb5663c30ee43806126012066aad4

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JSON

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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.

Detection rules are retrieved from Rulezet.

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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