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Vulnerability details: VCID-gt1b-1pws-aaas
Vulnerability ID VCID-gt1b-1pws-aaas
Aliases CVE-2016-0772
Summary The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
Status Published
Exploitability 2.0
Weighted Severity 6.2
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-693 Protection Mechanism Failure
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-0772.html
rhas Moderate https://access.redhat.com/errata/RHSA-2016:1626
rhas Moderate https://access.redhat.com/errata/RHSA-2016:1627
rhas Moderate https://access.redhat.com/errata/RHSA-2016:1628
rhas Moderate https://access.redhat.com/errata/RHSA-2016:1629
rhas Moderate https://access.redhat.com/errata/RHSA-2016:1630
cvssv3 4.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-0772.json
epss 0.01188 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01188 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01188 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
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epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
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epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.01634 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.07781 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.10435 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.11211 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.11211 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.11211 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
epss 0.11211 https://api.first.org/data/v1/epss?cve=CVE-2016-0772
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0772
cvssv2 5.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2016-0772
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2016-0772
generic_textual Medium https://ubuntu.com/security/notices/USN-3134-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-3134-1
generic_textual Medium http://www.openwall.com/lists/oss-security/2016/06/14/9
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-0772.html
http://rhn.redhat.com/errata/RHSA-2016-1626.html
http://rhn.redhat.com/errata/RHSA-2016-1627.html
http://rhn.redhat.com/errata/RHSA-2016-1628.html
http://rhn.redhat.com/errata/RHSA-2016-1629.html
http://rhn.redhat.com/errata/RHSA-2016-1630.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-0772.json
https://api.first.org/data/v1/epss?cve=CVE-2016-0772
https://bugzilla.redhat.com/show_bug.cgi?id=1303647
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0772
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
https://hg.python.org/cpython/rev/b3ce713fb9be
https://hg.python.org/cpython/rev/d590114c2394
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
https://security.gentoo.org/glsa/201701-18
https://ubuntu.com/security/notices/USN-3134-1
https://usn.ubuntu.com/usn/usn-3134-1
http://www.openwall.com/lists/oss-security/2016/06/14/9
http://www.securityfocus.com/bid/91225
http://www.splunk.com/view/SP-CAAAPSV
http://www.splunk.com/view/SP-CAAAPUE
cpe:2.3:a:python:python:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.4.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.5.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.5.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.5.1:*:*:*:*:*:*:*
CVE-2016-0772 Exploit https://github.com/tintinweb/pub/tree/11f6ebda59ad878377df78351f8ab580660d0024/pocs/cve-2016-0772
CVE-2016-0772 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/local/43500.txt
CVE-2016-0772 https://nvd.nist.gov/vuln/detail/CVE-2016-0772
RHSA-2016:1626 https://access.redhat.com/errata/RHSA-2016:1626
RHSA-2016:1627 https://access.redhat.com/errata/RHSA-2016:1627
RHSA-2016:1628 https://access.redhat.com/errata/RHSA-2016:1628
RHSA-2016:1629 https://access.redhat.com/errata/RHSA-2016:1629
RHSA-2016:1630 https://access.redhat.com/errata/RHSA-2016:1630
USN-3134-1 https://usn.ubuntu.com/3134-1/
Data source Exploit-DB
Date added Jan. 11, 2018
Description Python smtplib 2.7.11 / 3.4.4 / 3.5.1 - Man In The Middle StartTLS Stripping
Ransomware campaign use Unknown
Source publication date July 3, 2016
Exploit type local
Platform multiple
Source update date Jan. 11, 2018
Source URL https://github.com/tintinweb/pub/tree/11f6ebda59ad878377df78351f8ab580660d0024/pocs/cve-2016-0772
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-0772.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: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-0772
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:H/PR:N/UI:N/S:U/C:L/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-0772
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 0.84827
EPSS Score 0.01188
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.