vulnwire
6.1med

CVE-2016-4975

mod_userdir CRLF injection

Published 8 y ago · modified 4 mo ago · JSON

CVSS
6.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
19.9%
percentile 97%
Public exploits
0
none known

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).

Exploit prediction (EPSS)

19.88% probability of exploitation in the next 30 days, higher than 97% 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

Affected products

  • Apache Software Foundation Apache HTTP Server

Classification

Weakness
  • CWE-93 Improper Neutralization of CRLF Sequences
Technology feeds
Apache HTTP Server (RSS, critical only)

References

  • httpd.apache.org /security/vulnerabilities_22.html#CVE-2016-4975 · x_refsource_CONFIRM, x_transferred
  • security.netapp.com /advisory/ntap-20180926-0006/ · x_refsource_CONFIRM, x_transferred
  • support.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/105093 · vdb-entry, x_refsource_BID, x_transferred
  • httpd.apache.org /security/vulnerabilities_24.html#CVE-2016-4975 · x_refsource_CONFIRM, x_transferred
  • lists.apache.org /thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred

Sources

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