FKIE_CVE-2017-7803
Vulnerability from fkie_nvd - Published: 2018-06-11 21:29 - Updated: 2026-06-17 01:25
Severity
Summary
When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| redhat | enterprise_linux_desktop | 6.0 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 6.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.4 | |
| redhat | enterprise_linux_server_eus | 7.4 | |
| redhat | enterprise_linux_server_eus | 7.5 | |
| redhat | enterprise_linux_workstation | 6.0 | |
| redhat | enterprise_linux_workstation | 7.0 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * |
{
"affected": [
{
"affectedData": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "52.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "52.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "55",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"source": "security@mozilla.org"
}
],
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "When a page\u0027s content security policy (CSP) header contains a \"sandbox\" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird \u003c 52.3, Firefox ESR \u003c 52.3, and Firefox \u003c 55."
},
{
"lang": "es",
"value": "Cuando la cabecera CSP (Content Security Policy) de una p\u00e1gina contiene una directiva \"sandbox\", se ignoran otras directivas. Esto resulta en el cumplimiento incorrecto de CSP. Esta vulnerabilidad afecta a las versiones anteriores a la 52.3 de Thunderbird, las versiones anteriores a la 52.3 de Firefox ESR y las versiones anteriores a la 55 de Firefox."
}
],
"id": "CVE-2017-7803",
"lastModified": "2026-06-17T01:25:13.550",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
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"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.0"
},
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"source": "nvd@nist.gov",
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},
"published": "2018-06-11T21:29:09.937",
"references": [
{
"source": "security@mozilla.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/100234"
},
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{
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"url": "https://access.redhat.com/errata/RHSA-2017:2456"
},
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"url": "https://www.debian.org/security/2017/dsa-3928"
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"url": "https://www.mozilla.org/security/advisories/mfsa2017-18/"
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"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Modified",
"weaknesses": [
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{
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"value": "CWE-269"
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"source": "nvd@nist.gov",
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]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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