MEDIUMPOC
CVE-2004-1602
CWE-203Published: October 15, 2004· Updated: Jun 16, 2026
5.0
CVSS v3.1
Official Description
ProFTPD 1.2.x, including 1.2.8 and 1.2.10, responds in a different amount of time when a given username exists, which allows remote attackers to identify valid usernames by timing the server response.
Technical Analysis
CVE-2004-1602 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2004-1602. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityNone
AvailabilityNone
AV:N/AC:L/Au:N/C:P/I:N/A:N
Affected Vendors & Products
proftpd1 product(s)
proftpd
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://marc.info/?l=bugtraq&m=109786760926133&w=2Third Party Advisory
→
http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02Broken Link · Exploit · Patch · Vendor Advisory
→
http://securitytracker.com/id?1011687Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory
→
http://www.securityfocus.com/bid/11430Broken Link · Exploit · Third Party Advisory · VDB Entry · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/17724Third Party Advisory · VDB Entry
→
http://marc.info/?l=bugtraq&m=109786760926133&w=2Third Party Advisory
→
http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02Broken Link · Exploit · Patch · Vendor Advisory
→
http://securitytracker.com/id?1011687Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory
→
http://www.securityfocus.com/bid/11430Broken Link · Exploit · Third Party Advisory · VDB Entry · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/17724Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2004-1602
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessCWE-203
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedOct 15, 2004
Related CVEs (CWE-203)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2004-1602 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.