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Vulnerability details: VCID-17gc-ucef-aaah
Vulnerability ID VCID-17gc-ucef-aaah
Aliases CVE-2012-2374
GHSA-f7fv-v9rh-prvc
PYSEC-2012-5
Summary CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-20 Improper Input Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 7.5 http://openwall.com/lists/oss-security/2012/05/18/12
generic_textual HIGH http://openwall.com/lists/oss-security/2012/05/18/12
generic_textual MODERATE http://openwall.com/lists/oss-security/2012/05/18/12
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00329 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
epss 0.00522 https://api.first.org/data/v1/epss?cve=CVE-2012-2374
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-f7fv-v9rh-prvc
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-f7fv-v9rh-prvc
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2012-5.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2012-5.yaml
cvssv3.1 6.1 https://github.com/tornadoweb/tornado
cvssv3.1 7.5 https://github.com/tornadoweb/tornado
generic_textual HIGH https://github.com/tornadoweb/tornado
generic_textual MODERATE https://github.com/tornadoweb/tornado
cvssv3.1 7.5 https://github.com/tornadoweb/tornado/commit/1ae91f6d58e6257e0ab49d295d8741ce1727bdb7
generic_textual HIGH https://github.com/tornadoweb/tornado/commit/1ae91f6d58e6257e0ab49d295d8741ce1727bdb7
generic_textual MODERATE https://github.com/tornadoweb/tornado/commit/1ae91f6d58e6257e0ab49d295d8741ce1727bdb7
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2012-2374
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2012-2374
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2012-2374
cvssv3.1 7.5 https://web.archive.org/web/20140720192646/http://secunia.com/advisories/49185
generic_textual HIGH https://web.archive.org/web/20140720192646/http://secunia.com/advisories/49185
generic_textual MODERATE https://web.archive.org/web/20140720192646/http://secunia.com/advisories/49185
cvssv3.1 7.5 https://web.archive.org/web/20200229124524/http://www.securityfocus.com/bid/53612
generic_textual HIGH https://web.archive.org/web/20200229124524/http://www.securityfocus.com/bid/53612
generic_textual MODERATE https://web.archive.org/web/20200229124524/http://www.securityfocus.com/bid/53612
cvssv3.1 7.5 http://www.openwall.com/lists/oss-security/2012/05/18/6
generic_textual HIGH http://www.openwall.com/lists/oss-security/2012/05/18/6
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2012/05/18/6
cvssv3.1 7.5 http://www.tornadoweb.org/documentation/releases/v2.2.1.html
generic_textual HIGH http://www.tornadoweb.org/documentation/releases/v2.2.1.html
generic_textual MODERATE http://www.tornadoweb.org/documentation/releases/v2.2.1.html
Reference id Reference type URL
http://openwall.com/lists/oss-security/2012/05/18/12
https://api.first.org/data/v1/epss?cve=CVE-2012-2374
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2374
http://secunia.com/advisories/49185
https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2012-5.yaml
https://github.com/tornadoweb/tornado
https://github.com/tornadoweb/tornado/commit/1ae91f6d58e6257e0ab49d295d8741ce1727bdb7
https://web.archive.org/web/20140720192646/http://secunia.com/advisories/49185
https://web.archive.org/web/20200229124524/http://www.securityfocus.com/bid/53612
http://www.openwall.com/lists/oss-security/2012/05/18/6
http://www.securityfocus.com/bid/53612
http://www.tornadoweb.org/documentation/releases/v2.2.1.html
673987 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673987
cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.0:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.0.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.1:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.1.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.2:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:1.2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:2.0:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:2.1:*:*:*:*:*:*:*
cpe:2.3:a:tornadoweb:tornado:2.1.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:tornadoweb:tornado:2.1.1:*:*:*:*:*:*:*
CVE-2012-2374 https://nvd.nist.gov/vuln/detail/CVE-2012-2374
GHSA-f7fv-v9rh-prvc https://github.com/advisories/GHSA-f7fv-v9rh-prvc
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://openwall.com/lists/oss-security/2012/05/18/12
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2012-5.yaml
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:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/tornadoweb/tornado
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/tornadoweb/tornado
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/tornadoweb/tornado/commit/1ae91f6d58e6257e0ab49d295d8741ce1727bdb7
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:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2012-2374
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2012-2374
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://web.archive.org/web/20140720192646/http://secunia.com/advisories/49185
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://web.archive.org/web/20200229124524/http://www.securityfocus.com/bid/53612
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://www.openwall.com/lists/oss-security/2012/05/18/6
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://www.tornadoweb.org/documentation/releases/v2.2.1.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
Exploit Prediction Scoring System (EPSS)
Percentile 0.52856
EPSS Score 0.00329
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.