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Vulnerability details: VCID-67vd-ggxw-aaaj
Vulnerability ID VCID-67vd-ggxw-aaaj
Aliases CVE-2016-4993
GHSA-qcqr-hcjq-whfq
Summary Improper Neutralization of CRLF Sequences in HTTP Headers CRLF injection vulnerability in the Undertow web server allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 6.1 http://rhn.redhat.com/errata/RHSA-2016-1838.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2016-1838.html
cvssv3.1 6.1 http://rhn.redhat.com/errata/RHSA-2016-1839.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2016-1839.html
cvssv3.1 6.1 http://rhn.redhat.com/errata/RHSA-2016-1840.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2016-1840.html
cvssv3.1 6.1 http://rhn.redhat.com/errata/RHSA-2016-1841.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2016-1841.html
rhas Important https://access.redhat.com/errata/RHSA-2016:1838
rhas Important https://access.redhat.com/errata/RHSA-2016:1839
rhas Important https://access.redhat.com/errata/RHSA-2016:1840
rhas Important https://access.redhat.com/errata/RHSA-2016:1841
rhas Important https://access.redhat.com/errata/RHSA-2017:3454
rhas Important https://access.redhat.com/errata/RHSA-2017:3455
rhas Important https://access.redhat.com/errata/RHSA-2017:3456
rhas Important https://access.redhat.com/errata/RHSA-2017:3458
cvssv3 5.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-4993.json
epss 0.00315 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00315 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00315 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00315 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00315 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
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epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00359 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00485 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00497 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00497 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00497 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00497 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
epss 0.00595 https://api.first.org/data/v1/epss?cve=CVE-2016-4993
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1344321
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-qcqr-hcjq-whfq
cvssv3.1 6.1 https://github.com/undertow-io/undertow/commit/834496fb74ddda2af197940c70d08bab419fdf12
generic_textual MODERATE https://github.com/undertow-io/undertow/commit/834496fb74ddda2af197940c70d08bab419fdf12
cvssv3.1 6.1 https://issues.redhat.com/browse/UNDERTOW-827
generic_textual MODERATE https://issues.redhat.com/browse/UNDERTOW-827
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2016-4993
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2016-4993
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2016-1838.html
http://rhn.redhat.com/errata/RHSA-2016-1839.html
http://rhn.redhat.com/errata/RHSA-2016-1840.html
http://rhn.redhat.com/errata/RHSA-2016-1841.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-4993.json
https://api.first.org/data/v1/epss?cve=CVE-2016-4993
https://github.com/undertow-io/undertow/commit/834496fb74ddda2af197940c70d08bab419fdf12
https://issues.redhat.com/browse/UNDERTOW-827
http://www.securityfocus.com/bid/92894
http://www.securitytracker.com/id/1036758
1344321 https://bugzilla.redhat.com/show_bug.cgi?id=1344321
CVE-2016-4993 https://access.redhat.com/security/cve/CVE-2016-4993
CVE-2016-4993 https://nvd.nist.gov/vuln/detail/CVE-2016-4993
GHSA-qcqr-hcjq-whfq https://github.com/advisories/GHSA-qcqr-hcjq-whfq
RHSA-2016:1838 https://access.redhat.com/errata/RHSA-2016:1838
RHSA-2016:1839 https://access.redhat.com/errata/RHSA-2016:1839
RHSA-2016:1840 https://access.redhat.com/errata/RHSA-2016:1840
RHSA-2016:1841 https://access.redhat.com/errata/RHSA-2016:1841
RHSA-2017:3454 https://access.redhat.com/errata/RHSA-2017:3454
RHSA-2017:3455 https://access.redhat.com/errata/RHSA-2017:3455
RHSA-2017:3456 https://access.redhat.com/errata/RHSA-2017:3456
RHSA-2017:3458 https://access.redhat.com/errata/RHSA-2017:3458
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://rhn.redhat.com/errata/RHSA-2016-1838.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://rhn.redhat.com/errata/RHSA-2016-1839.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://rhn.redhat.com/errata/RHSA-2016-1840.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://rhn.redhat.com/errata/RHSA-2016-1841.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-4993.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/undertow-io/undertow/commit/834496fb74ddda2af197940c70d08bab419fdf12
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://issues.redhat.com/browse/UNDERTOW-827
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-4993
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-4993
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.70856
EPSS Score 0.00315
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.