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GHSA-P692-7MM3-3FXG
Vulnerability from github – Published: 2017-10-24 18:33 – Updated: 2023-07-31 20:59The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.
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"aliases": [
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"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:48:14Z",
"nvd_published_at": "2016-02-16T02:59:00Z",
"severity": "LOW"
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"details": "The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.",
"id": "GHSA-p692-7mm3-3fxg",
"modified": "2023-07-31T20:59:11Z",
"published": "2017-10-24T18:33:36Z",
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CVE-2015-7576 (GCVE-0-2015-7576)
Vulnerability from cvelistv5 – Published: 2016-02-16 02:00 – Updated: 2024-08-06 07:51- n/a
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GSD-2015-7576
Vulnerability from gsd - Updated: 2016-01-25 00:00{
"GSD": {
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"description": "The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.",
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"details": "There is a timing attack vulnerability in the basic authentication support\nin Action Controller. This vulnerability has been assigned the CVE\nidentifier CVE-2015-7576.\n\nVersions Affected: All.\nNot affected: None.\nFixed Versions: 5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1\n\nImpact\n------\nDue to the way that Action Controller compares user names and passwords in\nbasic authentication authorization code, it is possible for an attacker to\nanalyze the time taken by a response and intuit the password.\n\nFor example, this string comparison:\n\n \"foo\" == \"bar\"\n\nis possibly faster than this comparison:\n\n \"foo\" == \"fo1\"\n\nAttackers can use this information to attempt to guess the username and\npassword used in the basic authentication system.\n\nYou can tell you application is vulnerable to this attack by looking for\n`http_basic_authenticate_with` method calls in your application.\n\nAll users running an affected release should either upgrade or use one of\nthe workarounds immediately.\n\nReleases\n--------\nThe FIXED releases are available at the normal locations.\n\nWorkarounds\n-----------\nIf you can\u0027t upgrade, please use the following monkey patch in an initializer\nthat is loaded before your application:\n\n```\n$ cat config/initializers/basic_auth_fix.rb\nmodule ActiveSupport\n module SecurityUtils\n def secure_compare(a, b)\n return false unless a.bytesize == b.bytesize\n\n l = a.unpack \"C#{a.bytesize}\"\n\n res = 0\n b.each_byte { |byte| res |= byte ^ l.shift }\n res == 0\n end\n module_function :secure_compare\n\n def variable_size_secure_compare(a, b)\n secure_compare(::Digest::SHA256.hexdigest(a), ::Digest::SHA256.hexdigest(b))\n end\n module_function :variable_size_secure_compare\n end\nend\n\nmodule ActionController\n class Base\n def self.http_basic_authenticate_with(options = {})\n before_action(options.except(:name, :password, :realm)) do\n authenticate_or_request_with_http_basic(options[:realm] || \"Application\") do |name, password|\n # This comparison uses \u0026 so that it doesn\u0027t short circuit and\n # uses `variable_size_secure_compare` so that length information\n # isn\u0027t leaked.\n ActiveSupport::SecurityUtils.variable_size_secure_compare(name, options[:name]) \u0026\n ActiveSupport::SecurityUtils.variable_size_secure_compare(password, options[:password])\n end\n end\n end\n end\nend\n```\n\n\nPatches\n-------\nTo aid users who aren\u0027t able to upgrade immediately we have provided patches for\nthe two supported release series. They are in git-am format and consist of a\nsingle changeset.\n\n* 4-1-basic_auth.patch - Patch for 4.1 series\n* 4-2-basic_auth.patch - Patch for 4.2 series\n* 5-0-basic_auth.patch - Patch for 5.0 series\n\nPlease note that only the 4.1.x and 4.2.x series are supported at present. Users\nof earlier unsupported releases are advised to upgrade as soon as possible as we\ncannot guarantee the continued availability of security fixes for unsupported\nreleases.\n\nCredits\n-------\n\nThank you to Daniel Waterworth for reporting the problem and working with us to\nfix it.\n",
"id": "GSD-2015-7576",
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"value": "The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences."
}
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"value": "n/a"
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"reference_data": [
{
"name": "[oss-security] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller.",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/01/25/8"
},
{
"name": "FEDORA-2016-3ede04cd79",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178068.html"
},
{
"name": "openSUSE-SU-2016:0372",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html"
},
{
"name": "openSUSE-SU-2016:0363",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00034.html"
},
{
"name": "FEDORA-2016-94e71ee673",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html"
},
{
"name": "81803",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/81803"
},
{
"name": "FEDORA-2016-f486068393",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html"
},
{
"name": "SUSE-SU-2016:1146",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html"
},
{
"name": "1034816",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1034816"
},
{
"name": "DSA-3464",
"refsource": "DEBIAN",
"url": "http://www.debian.org/security/2016/dsa-3464"
},
{
"name": "RHSA-2016:0296",
"refsource": "REDHAT",
"url": "http://rhn.redhat.com/errata/RHSA-2016-0296.html"
},
{
"name": "FEDORA-2016-cb30088b06",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178047.html"
},
{
"name": "[ruby-security-ann] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller.",
"refsource": "MLIST",
"url": "https://groups.google.com/forum/message/raw?msg=ruby-security-ann/ANv0HDHEC3k/T8Hgq-hYEgAJ"
}
]
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},
"github.com/rubysec/ruby-advisory-db": {
"cve": "2015-7576",
"cvss_v2": 4.3,
"cvss_v3": 3.7,
"date": "2016-01-25",
"description": "There is a timing attack vulnerability in the basic authentication support\nin Action Controller. This vulnerability has been assigned the CVE\nidentifier CVE-2015-7576.\n\nVersions Affected: All.\nNot affected: None.\nFixed Versions: 5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1\n\nImpact\n------\nDue to the way that Action Controller compares user names and passwords in\nbasic authentication authorization code, it is possible for an attacker to\nanalyze the time taken by a response and intuit the password.\n\nFor example, this string comparison:\n\n \"foo\" == \"bar\"\n\nis possibly faster than this comparison:\n\n \"foo\" == \"fo1\"\n\nAttackers can use this information to attempt to guess the username and\npassword used in the basic authentication system.\n\nYou can tell you application is vulnerable to this attack by looking for\n`http_basic_authenticate_with` method calls in your application.\n\nAll users running an affected release should either upgrade or use one of\nthe workarounds immediately.\n\nReleases\n--------\nThe FIXED releases are available at the normal locations.\n\nWorkarounds\n-----------\nIf you can\u0027t upgrade, please use the following monkey patch in an initializer\nthat is loaded before your application:\n\n```\n$ cat config/initializers/basic_auth_fix.rb\nmodule ActiveSupport\n module SecurityUtils\n def secure_compare(a, b)\n return false unless a.bytesize == b.bytesize\n\n l = a.unpack \"C#{a.bytesize}\"\n\n res = 0\n b.each_byte { |byte| res |= byte ^ l.shift }\n res == 0\n end\n module_function :secure_compare\n\n def variable_size_secure_compare(a, b)\n secure_compare(::Digest::SHA256.hexdigest(a), ::Digest::SHA256.hexdigest(b))\n end\n module_function :variable_size_secure_compare\n end\nend\n\nmodule ActionController\n class Base\n def self.http_basic_authenticate_with(options = {})\n before_action(options.except(:name, :password, :realm)) do\n authenticate_or_request_with_http_basic(options[:realm] || \"Application\") do |name, password|\n # This comparison uses \u0026 so that it doesn\u0027t short circuit and\n # uses `variable_size_secure_compare` so that length information\n # isn\u0027t leaked.\n ActiveSupport::SecurityUtils.variable_size_secure_compare(name, options[:name]) \u0026\n ActiveSupport::SecurityUtils.variable_size_secure_compare(password, options[:password])\n end\n end\n end\n end\nend\n```\n\n\nPatches\n-------\nTo aid users who aren\u0027t able to upgrade immediately we have provided patches for\nthe two supported release series. They are in git-am format and consist of a\nsingle changeset.\n\n* 4-1-basic_auth.patch - Patch for 4.1 series\n* 4-2-basic_auth.patch - Patch for 4.2 series\n* 5-0-basic_auth.patch - Patch for 5.0 series\n\nPlease note that only the 4.1.x and 4.2.x series are supported at present. Users\nof earlier unsupported releases are advised to upgrade as soon as possible as we\ncannot guarantee the continued availability of security fixes for unsupported\nreleases.\n\nCredits\n-------\n\nThank you to Daniel Waterworth for reporting the problem and working with us to\nfix it.\n",
"framework": "rails",
"gem": "actionpack",
"ghsa": "p692-7mm3-3fxg",
"patched_versions": [
"\u003e= 5.0.0.beta1.1",
"~\u003e 4.2.5, \u003e= 4.2.5.1",
"~\u003e 4.1.14, \u003e= 4.1.14.1",
"~\u003e 3.2.22.1"
],
"title": "Timing attack vulnerability in basic authentication in Action Controller.",
"url": "https://groups.google.com/forum/#!topic/rubyonrails-security/ANv0HDHEC3k"
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=5.0.0.alpha \u003c5.0.0.beta1.1||\u003e=4.2.0.alpha \u003c4.2.5.1||\u003e=4.0.0.alpha \u003c4.1.14.1||\u003c3.2.22.1",
"affected_versions": "All versions starting from 5.0.0.alpha before 5.0.0.beta1.1, all versions starting from 4.2.0.alpha before 4.2.5.1, all versions starting from 4.0.0.alpha before 4.1.14.1, all versions before 3.2.22.1",
"credit": "Daniel Waterworth",
"cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"cvss_v3": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-254",
"CWE-937"
],
"date": "2019-08-08",
"description": "Due to the way that Action Controller compares user names and passwords in basic authentication authorization code, it is possible for an attacker to analyze the time taken by a response and intuit the password. You can tell you application is vulnerable to this attack by looking for `http_basic_authenticate_with` method calls in your application. ",
"fixed_versions": [
"3.2.22.1",
"4.1.14.1",
"4.2.5.1",
"5.0.0.beta1.1"
],
"identifier": "CVE-2015-7576",
"identifiers": [
"CVE-2015-7576"
],
"package_slug": "gem/actionpack",
"pubdate": "2016-02-15",
"solution": "Upgrade to latest, apply patches or use workaround. See provided link.",
"title": "Timing attack vulnerability in basic authentication",
"urls": [
"https://groups.google.com/forum/#!topic/rubyonrails-security/ANv0HDHEC3k"
],
"uuid": "3460469f-62d8-4337-98df-e740e0ab1d28"
}
]
},
"nvd.nist.gov": {
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"cpe23Uri": "cpe:2.3:a:rubyonrails:rails:4.0.1:-:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:rubyonrails:rails:4.0.1:rc4:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:rubyonrails:rails:4.0.0:beta:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:rubyonrails:ruby_on_rails:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "3.2.22",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2015-7576"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
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"value": "CWE-254"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[ruby-security-ann] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller.",
"refsource": "MLIST",
"tags": [],
"url": "https://groups.google.com/forum/message/raw?msg=ruby-security-ann/ANv0HDHEC3k/T8Hgq-hYEgAJ"
},
{
"name": "[oss-security] 20160125 [CVE-2015-7576] Timing attack vulnerability in basic authentication in Action Controller.",
"refsource": "MLIST",
"tags": [],
"url": "http://www.openwall.com/lists/oss-security/2016/01/25/8"
},
{
"name": "81803",
"refsource": "BID",
"tags": [],
"url": "http://www.securityfocus.com/bid/81803"
},
{
"name": "SUSE-SU-2016:1146",
"refsource": "SUSE",
"tags": [],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html"
},
{
"name": "FEDORA-2016-94e71ee673",
"refsource": "FEDORA",
"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html"
},
{
"name": "FEDORA-2016-cb30088b06",
"refsource": "FEDORA",
"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178047.html"
},
{
"name": "RHSA-2016:0296",
"refsource": "REDHAT",
"tags": [],
"url": "http://rhn.redhat.com/errata/RHSA-2016-0296.html"
},
{
"name": "FEDORA-2016-f486068393",
"refsource": "FEDORA",
"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html"
},
{
"name": "FEDORA-2016-3ede04cd79",
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"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178068.html"
},
{
"name": "openSUSE-SU-2016:0372",
"refsource": "SUSE",
"tags": [],
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html"
},
{
"name": "openSUSE-SU-2016:0363",
"refsource": "SUSE",
"tags": [],
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00034.html"
},
{
"name": "DSA-3464",
"refsource": "DEBIAN",
"tags": [],
"url": "http://www.debian.org/security/2016/dsa-3464"
},
{
"name": "1034816",
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"tags": [],
"url": "http://www.securitytracker.com/id/1034816"
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]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM"
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4
}
},
"lastModifiedDate": "2019-08-08T15:43Z",
"publishedDate": "2016-02-16T02:59Z"
}
}
}
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.
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.
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.