CVE-2015-3035
Exploited in the wild. In CISA KEV since 2022‑03‑25. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before 150304, and C8 (1.0) with firmware before 150316, Archer C9 (1.0), TL-WDR3500 (1.0), TL-WDR3600 (1.0), and TL-WDR4300 (1.0) with firmware before 150302, TL-WR740N (5.0) and TL-WR741ND (5.0) with firmware before 150312, and TL-WR841N (9.0), TL-WR841N (10.0), TL-WR841ND (9.0), and TL-WR841ND (10.0) with firmware before 150310 allows remote attackers to read arbitrary files via a .. (dot dot) in the PATH_INFO to login/.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2022-03-25.
US federal agencies must remediate by 2022-04-15.
Apply updates per vendor instructions.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
84% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
A public exploit existed 46 days before the patch.
- OpenVAS check added
- EPSS band changecritical → high
- Patch availablerecord updated
- Public exploit / PoCsource: packetstormnuclei check added
- Added to CISA KEV
- Publishedweakness classified, att&ck mapped
Affected products
- tl-wr741nd firmwareNetworking Infrastructure
- tl-wr841n firmwareNetworking Infrastructure
- tl-wr740n firmwareNetworking Infrastructure
- archer c5 firmwareNetworking Infrastructure
- tl-wdr3600 firmwareNetworking Infrastructure
- archer c7 firmwareNetworking Infrastructure
- tl-wr841nd firmwareNetworking Infrastructure
- archer c9 firmwareNetworking Infrastructure
And 5 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Scored 7.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- packetstormsecurity.com/files/131378/TP-LINK-Local-File-Disclosure.html
- seclists.org/fulldisclosure/2015/Apr/26
- securityfocus.com/archive/1/535240/100/0/threaded
And 15 more references. See all after sign-in
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We'll flag the next CVE, public exploit or patch for Tl-wr741nd Firmware, not every advisory. This one: actively exploited.
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