vulnwire
6.1med

CVE-2016-5699

CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x b…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
6.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
9.9%
percentile 96%
Public exploits
0
none known

CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL.

Exploit prediction (EPSS)

9.89% probability of exploitation in the next 30 days, higher than 96% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers

References

  • splunk.com /view/SP-CAAAPUE · x_refsource_CONFIRM, x_transferred
  • hg.python.org /cpython/rev/1c45047c5102 · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1630.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1627.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • hg.python.org /cpython/rev/bf3e1c9b80e9 · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1629.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • splunk.com /view/SP-CAAAPSV · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/06/16/2 · mailing-list, x_refsource_MLIST, x_transferred
  • lists.debian.org /debian-lts-announce/2019/02/msg00011.html · mailing-list, x_refsource_MLIST, x_transferred
  • oracle.com /technetwork/topics/security/bulletinjul2016-3090568.html · x_refsource_CONFIRM, x_transferred
  • hg.python.org /cpython/raw-file/v2.7.10/Misc/NEWS · x_refsource_CONFIRM, x_transferred
  • docs.python.org /3.4/whatsnew/changelog.html#python-3-4-4 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/06/15/12 · mailing-list, x_refsource_MLIST, x_transferred
  • blog.blindspotsecurity.com /2016/06/advisory-http-header-injection-in.html · x_refsource_MISC, x_transferred
  • openwall.com /lists/oss-security/2016/06/14/7 · mailing-list, x_refsource_MLIST, x_transferred
  • securityfocus.com /bid/91226 · vdb-entry, x_refsource_BID, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1628.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1626.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2020-01/msg00040.html · vendor-advisory, x_refsource_SUSE, x_transferred

Sources

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