github - ghsa-33w2-prhc-2q89

GHSA-33W2-PRHC-2Q89

Vulnerability from github – Published: 2022-05-24 17:16 – Updated: 2022-10-07 18:15

Details

Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. If the apport/ directory does not exist (this is not uncommon as /var/lock is a tmpfs), it will create the directory, otherwise it will simply continue execution using the existing directory. This allows for a symlink attack if an attacker were to create a symlink at /var/lock/apport, changing apport's lock file location. This file could then be used to escalate privileges, for example. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.

Severity ?

5.5 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2020-8831"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-22T22:15:00Z",
    "severity": "LOW"
  },
  "details": "Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. If the apport/ directory does not exist (this is not uncommon as /var/lock is a tmpfs), it will create the directory, otherwise it will simply continue execution using the existing directory. This allows for a symlink attack if an attacker were to create a symlink at /var/lock/apport, changing apport\u0027s lock file location. This file could then be used to escalate privileges, for example. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.",
  "id": "GHSA-33w2-prhc-2q89",
  "modified": "2022-10-07T18:15:44Z",
  "published": "2022-05-24T17:16:19Z",
  "references": [
    {
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    },
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      "type": "CVSS_V3"
    }
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}

CVE-2020-8831 (GCVE-0-2020-8831)

Vulnerability from cvelistv5 – Published: 2020-04-22 21:15 – Updated: 2024-09-16 19:00

Summary

Severity ?

6.5 (Medium)


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

CWE

CWE-379 - Creation of Temporary File in Directory with Incorrect Permissions

Assigner

canonical

References

URL

Tags

	https://launchpad.net/bugs/1862348	x_refsource_CONFIRM
	https://usn.ubuntu.com/4315-1/	x_refsource_CONFIRM
	https://usn.ubuntu.com/4315-2/	vendor-advisoryx_refsource_UBUNTU

Impacted products

	Vendor	Product	Version
	Canonical	Apport	Affected: 2.20.1 , < 2.20.1-0ubuntu2.23 (custom) Affected: 2.20.9 , < 2.20.9-0ubuntu7.14 (custom) Affected: 2.20.11 , < 2.20.11-0ubuntu8.8 (custom)

Credits

Maximilien Bourgeteau

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-33W2-PRHC-2Q89

CVE-2020-8831 (GCVE-0-2020-8831)

Tags

Sightings

Nomenclature