CVE-2009-3611
Estado: ModificadaAlta (7.1)—
common/snapshots.py in Back In Time (aka backintime) 0.9.26 changes certain permissions to 0777 before deleting the files in an old backup snapshot, which allows local users to obtain sensitive information by reading these files, or interfere with backup integrity by modifying files that are shared across snapshots.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.30%
- Percentil entre todas las CVEs puntuadas: 21
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-732
Referencias
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543785
- http://bugs.gentoo.org/show_bug.cgi?id=289047
- http://ftp.debian.org/debian/pool/main/b/backintime/backintime_0.9.26-3.diff.gz
- http://marc.info/?l=oss-security&m=125553645511436&w=2
- http://marc.info/?l=oss-security&m=125554894700336&w=2
- https://bugs.launchpad.net/ubuntu/+source/backintime/+bug/434256
- https://bugzilla.redhat.com/show_bug.cgi?id=520210
- https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00821.html
- https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00823.html
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543785
- http://bugs.gentoo.org/show_bug.cgi?id=289047
- http://ftp.debian.org/debian/pool/main/b/backintime/backintime_0.9.26-3.diff.gz
- http://marc.info/?l=oss-security&m=125553645511436&w=2
- http://marc.info/?l=oss-security&m=125554894700336&w=2
- https://bugs.launchpad.net/ubuntu/+source/backintime/+bug/434256
- https://bugzilla.redhat.com/show_bug.cgi?id=520210
- https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00821.html
- https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00823.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2009-3611",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2009-10-26T16:30:00.890",
"references": [
{
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543785",
"tags": [
"Mailing List"
],
"source": "secalert@redhat.com"
},
{
"url": "http://bugs.gentoo.org/show_bug.cgi?id=289047",
"tags": [
"Issue Tracking",
"Patch"
],
"source": "secalert@redhat.com"
},
{
"url": "http://ftp.debian.org/debian/pool/main/b/backintime/backintime_0.9.26-3.diff.gz",
"tags": [
"Broken Link",
"Patch"
],
"source": "secalert@redhat.com"
},
{
"url": "http://marc.info/?l=oss-security&m=125553645511436&w=2",
"tags": [
"Mailing List"
],
"source": "secalert@redhat.com"
},
{
"url": "http://marc.info/?l=oss-security&m=125554894700336&w=2",
"tags": [
"Mailing List"
],
"source": "secalert@redhat.com"
},
{
"url": "https://bugs.launchpad.net/ubuntu/+source/backintime/+bug/434256",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=520210",
"tags": [
"Issue Tracking"
],
"source": "secalert@redhat.com"
},
{
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00821.html",
"tags": [
"Mailing List"
],
"source": "secalert@redhat.com"
},
{
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00823.html",
"tags": [
"Mailing List"
],
"source": "secalert@redhat.com"
},
{
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543785",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://bugs.gentoo.org/show_bug.cgi?id=289047",
"tags": [
"Issue Tracking",
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://ftp.debian.org/debian/pool/main/b/backintime/backintime_0.9.26-3.diff.gz",
"tags": [
"Broken Link",
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://marc.info/?l=oss-security&m=125553645511436&w=2",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://marc.info/?l=oss-security&m=125554894700336&w=2",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugs.launchpad.net/ubuntu/+source/backintime/+bug/434256",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=520210",
"tags": [
"Issue Tracking"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00821.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00823.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-732"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "common/snapshots.py in Back In Time (aka backintime) 0.9.26 changes certain permissions to 0777 before deleting the files in an old backup snapshot, which allows local users to obtain sensitive information by reading these files, or interfere with backup integrity by modifying files that are shared across snapshots."
},
{
"lang": "es",
"value": "common/snapshots.py en Back In Time (también conocido como backintime) v0.9.26 cambia ciertos permisos al valor 0777 antes de eliminar los ficheros en una copia de seguridad antigua de un punto de restauración, lo que permite a usuarios locales obtener información sensible mediante la lectura de esos ficheros, o interferir con la integridad de la copia de seguridad modificando ficheros que están compartidos a través de puntos de restauración.\r\n"
}
],
"lastModified": "2026-06-16T23:12:00.827",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:le-web:backintime:0.9.26:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E6A8AFD9-1CE5-4985-911E-648A7206B365"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7000D33B-F3C7-43E8-8FC7-9B97AADC3E12"
},
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B3BB5EDB-520B-4DEF-B06E-65CA13152824"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}