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CVE-2013-5123

27
FAUCET Score

CVE-2013-5123 describes a man-in-the-middle vulnerability in Python Pip versions prior to 1.5, specifically impacting its mirroring support (-M, --use-mirrors) due to insecure DNS querying and authenticity checks. This medium-severity vulnerability (CVSS 5.9) allows attackers to intercept and manipulate package downloads, leading to high integrity impact, and affects products like Debian, Fedora, PyPA, Red Hat, and Virtualenv. Despite its potential for significant data integrity compromise, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.5CPE matchmatch criteria
cpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:*
12.0.7CPE matchmatch criteria
cpe:2.3:a:virtualenv:virtualenv:12.0.7:*:*:*:*:*:*:*
20CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
21CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:redhat:openshift:1.0:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.99%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-24086 · Jan 13, 2013
This CVE's current EPSS score of 0.0799 is in the 93rd percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

pippatch availablevia ghsa
Product: pipFixed in: 1.5
redhatpatch availablevia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Software CollectionsFixed in: python27-python-virtualenv
redhatno patchvia redhat_api
Product: Red Hat Software CollectionsFixed in: python33-python-virtualenv
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: python27-python-pip
redhatend of lifevia redhat_api
Product: OpenShift Enterprise 1Fixed in: python-virtualenv
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: python-virtualenv

Vendor Advisories (2)

pipGHSA-c5h8-cq4v-cvfmhigh

Improper Authentication in pip

May 24, 2022
redhatCVE-2013-5123Moderate

python-pip: insecure software download with mirroring support

Jul 31, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2015-April/155248.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-April/155291.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
bugzilla.suse.com / show_bug.cgi
Issue TrackingThird Party Advisory
security-tracker.debian.org / tracker/CVE-2013-5123
Third Party Advisory
openwall.com / lists/oss-security/2013/08/21/17
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2013/08/21/18
Mailing ListThird Party Advisory
securityfocus.com / bid/77520
Broken LinkThird Party AdvisoryVDB Entry