cve-2025-2817
Vulnerability from cvelistv5
Published
2025-04-29 13:13
Modified
2025-04-29 14:22
Severity ?
EPSS score ?
Summary
Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird ESR < 128.10.
References
Impacted products
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By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox \u003c 138, Firefox ESR \u003c 128.10, Firefox ESR \u003c 115.23, Thunderbird \u003c 138, and Thunderbird ESR \u003c 128.10." } ], "value": "Mozilla Firefox\u0027s update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox \u003c 138, Firefox ESR \u003c 128.10, Firefox ESR \u003c 115.23, Thunderbird \u003c 138, and Thunderbird ESR \u003c 128.10." } ], "problemTypes": [ { "descriptions": [ { "description": "Privilege escalation in Firefox Updater", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2025-04-29T13:13:33.783Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla" }, "references": [ { "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1917536" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-28/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-29/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-30/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-31/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-32/" } ] } }, "cveMetadata": { "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2025-2817", "datePublished": "2025-04-29T13:13:33.783Z", "dateReserved": "2025-03-26T14:08:36.146Z", "dateUpdated": "2025-04-29T14:22:00.891Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-2817\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2025-04-29T14:15:32.220\",\"lastModified\":\"2025-04-29T15:15:54.240\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Mozilla Firefox\u0027s update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox \u003c 138, Firefox ESR \u003c 128.10, Firefox ESR \u003c 115.23, Thunderbird \u003c 138, and Thunderbird ESR \u003c 128.10.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1917536\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-28/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-29/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-30/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-31/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-32/\",\"source\":\"security@mozilla.org\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.