TP-LINK TL-WVR/TL-WAR/TL-ER/TL-R uhttpd cgi-bin/luci HTTP Header File path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

A vulnerability was found in TP-LINK TL-WVR, TL-WAR, TL-ER and TL-R (Router Operating System) (affected version unknown). It has been declared as problematic. This vulnerability affects an unknown functionality in the library /usr/lib/lua/luci/controller/locale.lua of the file cgi-bin/luci of the component uhttpd. The manipulation as part of a HTTP Header leads to a path traversal vulnerability (File). The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

The locale feature in cgi-bin/luci on TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allows remote authenticated users to test for the existence of arbitrary files by making an operation=write;locale=%0d request, and then making an operation=read request with a crafted Accept-Language HTTP header, related to the set_sysinfo and get_sysinfo functions in /usr/lib/lua/luci/controller/locale.lua in uhttpd.

The bug was discovered 06/20/2018. The weakness was presented 11/27/2017 (Website). The advisory is available at github.com. This vulnerability was named CVE-2017-16959 since 11/27/2017. The attack can be initiated remotely. The successful exploitation needs a single authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 109979, 109977 and 109976 for similar entries.

Productinfo

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Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: File
Class: Path traversal / File
CWE: CWE-22
ATT&CK: T1006

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
11/27/2017 +0 days 🔍
11/27/2017 +0 days 🔍
11/27/2017 +0 days 🔍
06/20/2018 +205 days 🔍
12/10/2019 +538 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: github.com
Status: Not defined

CVE: CVE-2017-16959 (🔍)
See also: 🔍

Entryinfo

Created: 11/27/2017 16:22
Updated: 12/10/2019 16:55
Changes: 11/27/2017 16:22 (61), 12/10/2019 16:55 (1)
Complete: 🔍

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