CVE-2015-1187
D-Link and TRENDnet Multiple Devices Remote Code Execution Vulnerability
Description
CVE-2015-1187 is a critical authentication bypass vulnerability affecting D-Link and TRENDnet Multiple Devices. The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to perform remote code execution. An attacker can exploit this flaw without authentication over the network. CISA has added this vulnerability to the Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. The EPSS score of 81.23% (99.1th percentile) indicates a significantly elevated exploitation probability.
KEV Information
CVSS Score
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HOpen in CalculatorAffected Products
| Vendor | Product | Version |
|---|---|---|
| dlink | dir-626l firmware | 1.04 |
| dlink | dir-636l firmware | 1.04 |
| dlink | dir-808l firmware | 1.03 |
| dlink | dir-810l firmware | 1.01; 2.02 |
| dlink | dir-820l firmware | 1.02; 1.05; 2.01 |
| dlink | dir-826l firmware | 1.00 |
| dlink | dir-830l firmware | 1.00 |
| dlink | dir-836l firmware | 1.01 |
| trendnet | tew-731br firmware | 2.01 |
| dlink | dir-651 firmware | 1.10na |
| trendnet | tew-651br firmware | - |
| trendnet | tew-652br firmware | - |
| trendnet | tew-711br firmware | 1.00 |
| trendnet | tew-810dr firmware | 1.00 |
| trendnet | tew-813dru firmware | 1.00 |
Multiple CVSS Assessments
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- http://packetstormsecurity.com/files/130607/D-Link-DIR636L-Remote-Command-Injection.html(Issue Tracking, Third Party Advisory, VDB Entry)
- http://packetstormsecurity.com/files/131465/D-Link-TRENDnet-NCC-Service-Command-Injection.html(Exploit, Third Party Advisory, VDB Entry)
- http://seclists.org/fulldisclosure/2015/Mar/15(Issue Tracking, Mailing List, Third Party Advisory)
- http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10052(Vendor Advisory)
- http://www.securityfocus.com/bid/72848(Broken Link, Third Party Advisory, VDB Entry)
- https://github.com/darkarnium/secpub/tree/master/Multivendor/ncc2(Broken Link, Issue Tracking, Mitigation, Third Party Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1187(US Government Resource)
Weakness Type
CWE-287: Improper Authentication
Improper Authentication occurs when an actor claims to have a given identity but the software does not prove or insufficiently proves that the claim is correct. This encompasses a wide range of authentication flaws including weak password mechanisms, missing multi-factor authentication, predictable tokens, bypassable authentication logic, and flawed session management. In the case of CVE-2015-1187, this weakness allows attackers to compromise D-Link and TRENDnet Multiple Devices systems.
Learn more: CWE-287 — Improper Authentication
Impact Analysis
CVE-2015-1187 carries a CVSS 3.1 base score of 9.8 (CRITICAL), reflecting the serious risk it poses to affected environments. Successful exploitation can lead to complete compromise of data confidentiality, full system integrity compromise, and complete denial of service. The attack vector is network-based with low complexity, meaning exploitation is straightforward and can be reliably repeated. Organizations running D-Link and TRENDnet Multiple Devices face tangible risk of unauthorized access, data breaches, and operational disruption if this vulnerability remains unpatched.
Exploit Maturity
CVE-2015-1187 is listed in the CISA Known Exploited Vulnerabilities catalog with a remediation deadline of 2022-04-15, confirming that real-world exploitation has been observed. The EPSS score of 81.23% (99.1th percentile) places this vulnerability among those most likely to be exploited. Public exploit code is available in vulnerability databases, lowering the barrier for attackers and increasing the urgency of remediation.
Remediation
- The impacted product is end-of-life and should be disconnected if still in use. This is the CISA-mandated remediation action and should be prioritized immediately.
- If the device cannot be immediately decommissioned, isolate it from the network by placing it behind strict firewall rules that block all inbound access from untrusted networks.
- Plan and execute migration to a supported replacement product that receives active security updates.
- Audit network logs and device configurations for indicators of compromise, including unexpected outbound connections, unauthorized configuration changes, or newly created accounts.
- Implement network monitoring to detect any exploitation attempts against the affected Multiple Devices systems.
Technical Details
CVE-2015-1187 is exploitable remotely over the network without any prior authentication. The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to perform remote code execution. The attack complexity is rated low, meaning no specialized conditions or preparation are needed beyond network access to the target. The scope is unchanged, meaning the impact is confined to the vulnerable component. The CVSS 3.1 base score of 9.8 reflects the combination of these factors and the potential for significant damage to affected systems.
Frequently Asked Questions
Is CVE-2015-1187 being actively exploited?
Yes. CISA has confirmed active exploitation by adding CVE-2015-1187 to the Known Exploited Vulnerabilities catalog. The EPSS score of 81.23% (99.1th percentile) further indicates high exploitation likelihood.
What products are affected by CVE-2015-1187?
CVE-2015-1187 affects D-Link and TRENDnet Multiple Devices. Specifically, affected products include dlink dir-626l firmware, dlink dir-636l firmware, dlink dir-808l firmware, dlink dir-810l firmware, dlink dir-820l firmware, and others.
How do I fix CVE-2015-1187?
The impacted product is end-of-life and should be disconnected if still in use. Migrate to a supported product as soon as possible.
How severe is CVE-2015-1187?
CVE-2015-1187 has a CVSS 3.1 score of 9.8 (CRITICAL). This is a critical vulnerability that should be remediated with the highest priority. The vulnerability enables unauthenticated remote attackers to potentially compromise affected Multiple Devices systems.
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