CVE-2019-6972
CVE-2019-6972 is a high-severity vulnerability in Tp-link Tl-wr1043nd Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-326.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-326
- Affected product: Tp-link Tl-wr1043nd Firmware
- Published:
- Last modified:
Description
An issue was discovered on TP-Link TL-WR1043ND V2 devices. The credentials can be easily decoded and cracked by brute-force, WordList, or Rainbow Table attacks. Specifically, credentials in the "Authorization" cookie are encoded with URL encoding and base64, leading to easy decoding. Also, the username is cleartext, and the password is hashed with the MD5 algorithm (after decoding of the URL encoded string with base64).
Frequently asked questions
- What is CVE-2019-6972?
- An issue was discovered on TP-Link TL-WR1043ND V2 devices. The credentials can be easily decoded and cracked by brute-force, WordList, or Rainbow Table attacks. Specifically, credentials in the "Authorization" cookie are encoded with URL encoding and base64, leading to easy decoding. Also, the username is cleartext, and the password is hashed with the MD5 algorithm (after decoding of the URL encoded string with base64).
- How severe is CVE-2019-6972?
- CVE-2019-6972 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2019-6972 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-6972?
- CVE-2019-6972 affects Tp-link Tl-wr1043nd Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-6972?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2019-6972 published?
- CVE-2019-6972 was published on 2019-06-19 and last updated on 2026-06-17.
References
- https://github.com/MalFuzzer/Vulnerability-Research/blob/master/TL-WR1043ND%20V2%20-%20TP-LINK/TL-WR1043ND_PoC.pdf
- https://twitter.com/MalFuzzer/status/1141269335685652480?s=19
Affected products (1)
- cpe:2.3:o:tp-link:tl-wr1043nd_firmware:2.0:*:*:*:*:*:*:*
More vulnerabilities in Tp-link Tl-wr1043nd Firmware
- CVE-2019-6971 — Critical (CVSS 9.8): An issue was discovered on TP-Link TL-WR1043ND V2 devices. An attacker can send a cookie in an HTTP authentication…
- CVE-2013-2646 — High (CVSS 7.5): TP-LINK TL-WR1043ND V1_120405 devices contain an unspecified denial of service vulnerability.
- CVE-2018-16119 — High (CVSS 7.2): Stack-based buffer overflow in the httpd server of TP-Link WR1043nd (Firmware Version 3) allows remote attackers to…
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