CyberSecBulletin
CVE-2015-1187Exploited in the wildNVD status: Analyzed

D-Link and TRENDnet Multiple Devices Remote Code Execution

Published Updated By the CyberSecBulletin desk

CVE-2015-1187 is a critical-severity improper authentication vulnerability in Dir-626l Firmware from D-Link, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Dir-626l Firmware versions: 1.04. The record does not name a fixed version, so check the vendor advisory. CISA added it to the Known Exploited Vulnerabilities catalogue on March 25, 2022, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Check which version of Dir-626l Firmware you run against the affected versions below, and install the vendor's latest release.
  2. CISA's required action: The impacted product is end-of-life and should be disconnected if still in use.
  3. Read the advisory on securityadvisories.dlink.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
D-LinkDir-626l Firmware1.04Not stated
D-LinkDir-636l Firmware1.04Not stated
D-LinkDir-808l Firmware1.03Not stated
D-LinkDir-810l Firmware1.01; 2.02Not stated
D-LinkDir-820l Firmware1.02; 1.05; 2.01Not stated
D-LinkDir-826l Firmware1.00Not stated
D-LinkDir-830l Firmware1.00Not stated
D-LinkDir-836l Firmware1.01Not stated
TRENDnetTew-731br Firmware2.01Not stated
D-LinkDir-651 Firmware1.10naNot stated
TRENDnetTew-651br FirmwareNot specified in the recordNot stated
TRENDnetTew-652br FirmwareNot specified in the recordNot stated
TRENDnetTew-711br Firmware1.00Not stated
TRENDnetTew-810dr Firmware1.00Not stated
TRENDnetTew-813dru Firmware1.00Not stated

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.19.8CriticalNVD
CVSS 3.19.8CriticalCISA (ADP)
CVSS 2.010.0HighNVD

Official description

The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to execute arbitrary code via the ping_addr parameter to ping.ccp.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

How developers prevent this class of flaw

  • Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

More Improper Authentication vulnerabilities (CWE-287)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. Deadline for US federal agencies to remediate, set by CISA.
  4. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: total).
  5. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Technical write-ups (may include proof of concept)

Recent Improper Authentication vulnerabilities

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