CVE-2002-1336

Home/CVE/TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to byp

CVE

TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to byp

TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.

HIGH · CVSS 7.5 EPSS 0.01074

Schedule remediation

CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

▤

Affected Products & Versions

tightvncall versions

▣

Scoring & Timeline

7.5

HIGH · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Published to NVD11 Dec 2002 · 05:00 AM

⚑

Vendor Advisories

rhsaRHSA-2003:041Moderate

rhsaRHSA-2002:287Moderate

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640

http://marc.info/?l=bugtraq&m=102753170201524&w=2

http://marc.info/?l=bugtraq&m=102769183913594&w=2

http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:022

http://www.redhat.com/support/errata/RHSA-2002-287.html

http://www.redhat.com/support/errata/RHSA-2003-041.html

Show all 9 references

http://www.securityfocus.com/bid/5296

http://www.tightvnc.com/WhatsNew.txt

https://exchange.xforce.ibmcloud.com/vulnerabilities/5992

Intelligence Graph · click any node to traverse

CVETechnique ActorTool Family

drag to reposition · click any node to traverse · button top-right enlarges

External lookups - second-class, for what we don’t hold ourselves

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities

Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs

Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures

Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1

About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service

threatengine.sh · Open-source threat intelligence platform · 100+ authoritative sources · Every fact traces to its origin