accept no compromises

Apache httpd 2.2.32 / 2.4.25 ap_get_basic_auth_pw Authentication Bypass

Apache httpd 2.2.32 / 2.4.25 ap_get_basic_auth_pw Authentication Bypass
Posted Jun 20, 2017
Authored by Emmanuel Dreyfus

Apache httpd versions 2.2.0 through 2.2.32 and 2.4.0 through 2.4.25 suffer from an ap_get_basic_auth_pw authentication bypass vulnerability.

tags | advisory, bypass
advisories | CVE-2017-3167
MD5 | cb420682d67ca6cb1a509889ce890788

Apache httpd 2.2.32 / 2.4.25 ap_get_basic_auth_pw Authentication Bypass

Change Mirror Download
CVE-2017-3167: ap_get_basic_auth_pw authentication bypass

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
httpd 2.2.0 to 2.2.32
httpd 2.4.0 to 2.4.25

Description:
Use of the ap_get_basic_auth_pw() by third-party modules outside of the
authentication phase may lead to authentication requirements being
bypassed.

Mitigation:
2.2.x users should either apply the patch available at
https://www.apache.org/dist/httpd/patches/apply_to_2.2.32/CVE-2017-3167.patch
or upgrade in the future to 2.2.33, which is currently unreleased.

2.4.x users should upgrade to 2.4.26.

Third-party module writers SHOULD use ap_get_basic_auth_components(),
available in 2.2.33 and 2.4.26, instead of ap_get_basic_auth_pw().
Modules which call the legacy ap_get_basic_auth_pw() during the
authentication phase MUST either immediately authenticate the user after
the call, or else stop the request immediately with an error response,
to avoid incorrectly authenticating the current request.

Credit:
The Apache HTTP Server security team would like to thank Emmanuel
Dreyfus for reporting this issue.

References:
https://httpd.apache.org/security_report.html

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

October 2017

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    15 Files
  • 2
    Oct 2nd
    16 Files
  • 3
    Oct 3rd
    15 Files
  • 4
    Oct 4th
    15 Files
  • 5
    Oct 5th
    11 Files
  • 6
    Oct 6th
    6 Files
  • 7
    Oct 7th
    2 Files
  • 8
    Oct 8th
    1 Files
  • 9
    Oct 9th
    13 Files
  • 10
    Oct 10th
    16 Files
  • 11
    Oct 11th
    15 Files
  • 12
    Oct 12th
    23 Files
  • 13
    Oct 13th
    13 Files
  • 14
    Oct 14th
    12 Files
  • 15
    Oct 15th
    2 Files
  • 16
    Oct 16th
    16 Files
  • 17
    Oct 17th
    16 Files
  • 18
    Oct 18th
    14 Files
  • 19
    Oct 19th
    8 Files
  • 20
    Oct 20th
    0 Files
  • 21
    Oct 21st
    0 Files
  • 22
    Oct 22nd
    0 Files
  • 23
    Oct 23rd
    0 Files
  • 24
    Oct 24th
    0 Files
  • 25
    Oct 25th
    0 Files
  • 26
    Oct 26th
    0 Files
  • 27
    Oct 27th
    0 Files
  • 28
    Oct 28th
    0 Files
  • 29
    Oct 29th
    0 Files
  • 30
    Oct 30th
    0 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close