cURL and libcurl CURLOPT_FOLLOWLOCATION security bypass

curl-followlocation-security-bypass (49030) The risk level is classified as MediumMedium Risk

Description:

cURL and libcurl could allow a remote attacker to bypass security restrictions, caused by an error in the redirect implementation when CURLOPT_FOLLOWLOCATION is enabled. By persuading a victim to transfer files from a malicious HTTP server that redirects to a FILE:// or SCP:// URL, an attacker could exploit this vulnerability to bypass security restrictions and read or overwrite arbitrary files, trigger arbitrary requests, or execute arbitrary commands.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of cURL (7.19.4 or later), available from the cURL Web page. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Apple Web site: About the security content of Security Update 2010-002 / Mac OS X v10.6.3.
  • cURL Web page: cURL - Security Advisory (March 3, 2009).
  • ASA-2009-130: curl security update (RHSA-2009-0341)
  • BID-33962: cURL/libcURL HTTP 'Location:' Redirect Security Bypass Vulnerability
  • CVE-2009-0037: The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary requests to intranet servers, (2) read or overwrite arbitrary files via a redirect to a file: URL, or (3) execute arbitrary commands via a redirect to an scp: URL.
  • DSA-1738: curl -- arbitrary file access
  • GLSA-200903-21: cURL: Arbitrary file access
  • MDVSA-2009:069: curl
  • RHSA-2009-0341: Moderate: curl security update
  • SA34138: cURL/libcURL "Location:" Redirect URLs Security Bypass
  • SA38858: SSH Tectia Audit Player Multiple Vulnerabilities
  • SECTRACK ID: 1021783: cURL/libcurl HTTP Redirect Processing May Let Remote Users Access Files
  • SUSE-SR:2009:006: SUSE Security Summary Report
  • USN-726-1: curl vulnerability
  • VUPEN/ADV-2009-0581: libcURL/cURL Location: Redirect URL Security Bypass Vulnerability
  • VUPEN/ADV-2009-1865: VMware ESX Security Update Fixes Security Bypass and DoS Issues

Platforms Affected:

  • Apple Mac OS X 10.5.8
  • Apple Mac OS X 10.6
  • Apple Mac OS X 10.6.1
  • Apple Mac OS X 10.6.2
  • Apple Mac OS X Server 10.5.8
  • Apple Mac OS X Server 10.6
  • Apple Mac OS X Server 10.6.1
  • Apple Mac OS X Server 10.6.2
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 7.10
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • cURL cURL 5.11
  • cURL cURL 6.0
  • cURL cURL 6.1beta
  • cURL cURL 6.2
  • cURL cURL 6.3
  • cURL cURL 6.3.1
  • cURL cURL 6.4
  • cURL cURL 6.5
  • cURL cURL 6.5.1
  • cURL cURL 6.5.2
  • cURL cURL 7.1
  • cURL cURL 7.1.1
  • cURL cURL 7.10
  • cURL cURL 7.10.1
  • cURL cURL 7.10.2
  • cURL cURL 7.10.3
  • cURL cURL 7.10.4
  • cURL cURL 7.10.5
  • cURL cURL 7.10.6
  • cURL cURL 7.10.7
  • cURL cURL 7.10.8
  • cURL cURL 7.11.1
  • cURL cURL 7.12
  • cURL cURL 7.12.1
  • cURL cURL 7.12.2
  • cURL cURL 7.13
  • cURL cURL 7.13.2
  • cURL cURL 7.14
  • cURL cURL 7.14.1
  • cURL cURL 7.15
  • cURL cURL 7.15.1
  • cURL cURL 7.15.3
  • cURL cURL 7.16.3
  • cURL cURL 7.16.4
  • cURL cURL 7.17
  • cURL cURL 7.18
  • cURL cURL 7.19.3
  • cURL cURL 7.2
  • cURL cURL 7.2.1
  • cURL cURL 7.3
  • cURL cURL 7.4
  • cURL cURL 7.4.1
  • cURL cURL 7.4.2
  • cURL cURL 7.5
  • cURL cURL 7.5.1
  • cURL cURL 7.5.2
  • cURL cURL 7.6
  • cURL cURL 7.6.1
  • cURL cURL 7.7
  • cURL cURL 7.7.1
  • cURL cURL 7.7.2
  • cURL cURL 7.7.3
  • cURL cURL 7.8
  • cURL cURL 7.8.1
  • cURL cURL 7.8.2
  • cURL cURL 7.9
  • cURL cURL 7.9.1
  • cURL cURL 7.9.2
  • cURL cURL 7.9.3
  • cURL cURL 7.9.4
  • cURL cURL 7.9.5
  • cURL cURL 7.9.6
  • cURL cURL 7.9.7
  • cURL cURL 7.9.8
  • cURL Libcurl 5.11
  • cURL Libcurl 7.12
  • cURL Libcurl 7.12.1
  • cURL Libcurl 7.12.2
  • cURL Libcurl 7.12.3
  • cURL Libcurl 7.13
  • cURL Libcurl 7.13.1
  • cURL Libcurl 7.13.2
  • cURL Libcurl 7.14
  • cURL Libcurl 7.14.1
  • cURL Libcurl 7.15
  • cURL Libcurl 7.15.1
  • cURL Libcurl 7.15.2
  • cURL Libcurl 7.15.3
  • cURL Libcurl 7.16.3
  • cURL Libcurl 7.19.3
  • Debian Debian Linux 4.0
  • Debian Debian Linux 5.0
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.0 X86_64
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4.7.z AS
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5.3.z EUS
  • RedHat Enterprise Linux Long Life 5.3
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • RedHat Red Hat Enterprise Linux 4.7.z ES

Reported:

Mar 03, 2009

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