The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Apache httpd: information disclosure via URL Normalization Consecutive Slashes

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via URL Normalization Consecutive Slashes of Apache httpd, in order to obtain sensitive information.
Impacted products: Apache httpd, Blue Coat CAS, Broadcom Content Analysis, Debian, Fedora, HP-UX, IBM i, Rational ClearCase, WebSphere AS Traditional, openSUSE Leap, Oracle Communications, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 3/4.
Creation date: 02/04/2019.
Références of this threat: CERTFR-2019-AVI-141, cpuapr2020, CVE-2019-0220, DLA-1748-1, DSA-4422-1, FEDORA-2019-a4ed7400f4, HPESBUX03950, ibm10880413, ibm10883380, ibm10885680, openSUSE-SU-2019:1190-1, openSUSE-SU-2019:1209-1, openSUSE-SU-2019:1258-1, RHSA-2019:2343-01, RHSA-2019:3436-01, RHSA-2019:4126-01, SUSE-SU-2019:0873-1, SUSE-SU-2019:0878-1, SUSE-SU-2019:0888-1, SUSE-SU-2019:0888-2, SUSE-SU-2019:0889-1, SYMSA16056, USN-3937-1, VIGILANCE-VUL-28917.

Description of the vulnerability 

An attacker can bypass access restrictions to data via URL Normalization Consecutive Slashes of Apache httpd, in order to obtain sensitive information.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This threat note impacts software or systems such as Apache httpd, Blue Coat CAS, Broadcom Content Analysis, Debian, Fedora, HP-UX, IBM i, Rational ClearCase, WebSphere AS Traditional, openSUSE Leap, Oracle Communications, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity note is important.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this vulnerability note.

Solutions for this threat 

Apache httpd: workaround for URL Normalization Consecutive Slashes.
A workaround is indicated in the information source.

Broadcom Content Analysis: solution for Apache HTTP Server.
The solution is indicated in information sources.

Debian 8: new apache2 packages.
New packages are available:
  Debian 8: apache2 2.4.10-10+deb8u14

Debian 9: new apache2 packages.
New packages are available:
  Debian 9: apache2 2.4.25-3+deb9u7

Fedora 28: new httpd packages.
New packages are available:
  Fedora 28: httpd 2.4.39-1.1.fc28

HP-UX Apache-based Web Server: version B.2.4.18.05.
The version B.2.4.18.05 is fixed:
  https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXWSSUITE
  https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXWSATW508

IBM i: patch for Apache httpd.
A patch is available:
  IBM i 7.2 - SI69901: https://www-945.ibm.com/support/fixcentral/
  IBM i 7.3 - SI69900 and SI69828: https://www-945.ibm.com/support/fixcentral/

IBM i: patch for HTTP Server.
A patch is indicated in information sources.

IBM Rational ClearCase: fixed versions for Apache httpd.
Fixed versions are indicated in information sources.
This update is the same then the one referenced in VIGILANCE-SOL-65296.

IBM WebSphere Application Server Traditional: fixed versions for Apache httpd.
Fixed versions are indicated in information sources.

openSUSE Leap 15.0: new apache2 packages.
New packages are available:
  openSUSE Leap 15.0: apache2 2.4.33-lp150.2.17.1

openSUSE Leap 42.3: new apache2 packages.
New packages are available:
  openSUSE Leap 42.3: apache2 2.4.23-49.1

Oracle Communications: CPU of April 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2647690.1
  https://support.oracle.com/rs?type=doc&id=2654603.1
  https://support.oracle.com/rs?type=doc&id=2652618.1
  https://support.oracle.com/rs?type=doc&id=2653087.1
  https://support.oracle.com/rs?type=doc&id=2653688.1
  https://support.oracle.com/rs?type=doc&id=2652610.1
  https://support.oracle.com/rs?type=doc&id=2653279.1
  https://support.oracle.com/rs?type=doc&id=2652619.1
  https://support.oracle.com/rs?type=doc&id=2652621.1
  https://support.oracle.com/rs?type=doc&id=2652606.1
  https://support.oracle.com/rs?type=doc&id=2653691.1
  https://support.oracle.com/rs?type=doc&id=2653692.1
  https://support.oracle.com/rs?type=doc&id=2647687.1
  https://support.oracle.com/rs?type=doc&id=2652622.1

RHEL 6: new httpd24-httpd packages.
New packages are available:
  RHEL 6.0-6.10: httpd24-httpd 2.4.34-15.el6

RHEL 7: new httpd packages.
New packages are available:
  RHEL 7: httpd 2.4.6-90.el7

RHEL 8: new httpd-2.4 module.
The following module is updated:
  RHEL 8 Module: httpd:2.4

SUSE LE 12: new apache2 packages.
New packages are available:
  SUSE LE 12 RTM: apache2 2.4.10-14.36.1
  SUSE LE 12 SP1: apache2 2.4.16-20.24.1
  SUSE LE 12 SP2: apache2 2.4.23-29.40.1
  SUSE LE 12 SP3: apache2 2.4.23-29.40.1
  SUSE LE 12 SP4: apache2 2.4.23-29.40.1

SUSE LE 15: new apache2 packages.
New packages are available:
  SUSE LE 15 RTM: apache2 2.4.33-3.15.1

Ubuntu: new apache2-bin packages.
New packages are available:
  Ubuntu 18.10: apache2-bin 2.4.34-1ubuntu2.1
  Ubuntu 18.04 LTS: apache2-bin 2.4.29-1ubuntu4.6
  Ubuntu 16.04 LTS: apache2-bin 2.4.18-2ubuntu3.10
  Ubuntu 14.04 LTS: apache2-bin 2.4.7-1ubuntu4.22

Wind River Linux: version 10.18.44.9.
The version 10.18.44.9 is fixed:
  https://support2.windriver.com/
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides networks vulnerabilities announces. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.