CVE-2016-7098 : Race condition in wget 1.17 and earlier, when used in recursive or mirroring mod

Race condition in wget 1.17 and earlier, when used in recursive or mirroring mode to download a single file, might allow remote servers to bypass intended access list restrictions by keeping an HTTP connection open.

Published 2016-09-26 14:59:08

Updated 2017-09-03 01:29:12

Source Red Hat, Inc.

View at NVD, CVE.org

Products affected by CVE-2016-7098

GNU » Wget
Versions up to, including, (<=) 1.17
cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-7098

EPSS FAQ

3.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 91 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-7098

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.1	HIGH	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	2.2	5.9	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2016-7098

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-7098

https://www.exploit-db.com/exploits/40824/

GNU Wget < 1.18 - Access List Bypass / Race Condition
http://www.securityfocus.com/bid/93157

GNU Wget CVE-2016-7098 Security Bypass Vulnerability
http://lists.gnu.org/archive/html/bug-wget/2016-08/msg00134.html

Re: [Bug-wget] Wget - acess list bypass / race condition PoC
Mailing List
http://lists.gnu.org/archive/html/bug-wget/2016-08/msg00083.html

[Bug-wget] Wget - acess list bypass / race condition PoC
Exploit;Mailing List
http://www.openwall.com/lists/oss-security/2016/08/27/2

oss-security - Re: CVE Request - Gnu Wget 1.17 - Design Error Vulnerability
Mailing List
http://lists.opensuse.org/opensuse-updates/2017-01/msg00007.html

openSUSE-SU-2017:0015-1: moderate: Security update for wget
https://lists.debian.org/debian-lts-announce/2020/01/msg00031.html

[SECURITY] [DLA 2086-1] wget security update
http://lists.opensuse.org/opensuse-updates/2016-09/msg00044.html

openSUSE-SU-2016:2284-1: moderate: Security update for wget
Third Party Advisory

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Vulnerability Details : CVE-2016-7098

Products affected by CVE-2016-7098

Exploit prediction scoring system (EPSS) score for CVE-2016-7098

CVSS scores for CVE-2016-7098

CWE ids for CVE-2016-7098

References for CVE-2016-7098