CVE-2002-0258
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMerak Mail IceWarp Web Mail uses a static identifier as a user session ID that does not change across sessions, which could allow remote attackers with access to the ID to gain privileges as that user, e.g. by extracting the ID from the user's answer or forward URLs.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceMerak Mail IceWarp Web Mail uses a static session identifier that remains unchanged across different user sessions. An attacker who obtains this static ID (e.g., by intercepting URLs in email forwards or answers) can hijack the user's session and authenticate as that user without knowing credentials.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify IceWarp/Merak installationCheck for the presence of IceWarp Web Mail or Merak Mail Server by looking for their installation directories, services, or web accessible paths (typically /mail, /webmail, or the icewarp/merak directories in the web server root)Affected if The product is installed and accessible on the system
-
Capture a session ID from loginLog into the web mail interface and observe the URL, cookies, or hidden form fields for a session identifier. Note the exact session ID value presented after authenticationAffected if A session ID is visible in the URL or as a cookie parameter after login
-
Log out and log in again with a different accountLog out of the web mail session, then log in with a different user account. Capture the new session ID from the URL or cookiesAffected if The session ID remains identical to the previous login session (static session reuse)
-
Test session ID persistence across browsersOpen a different browser or incognito window, manually construct the URL using the previously captured session ID, and attempt to access the web mail interfaceAffected if The session ID from one user session successfully authenticates as a different user without credentials (session hijacking possible)
-
Verify session ID randomnessCreate multiple new user sessions and compare the session ID values. Check if they follow a predictable pattern (sequential numbers, timestamps, or static prefixes) rather than being randomly generatedAffected if Session IDs are sequential, timestamp-based, or otherwise predictable rather than cryptographically random
If the product is installed and session IDs remain unchanged across different user logins or can be reused to impersonate other users, the environment is affected by this vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement dynamic session ID regeneration on login and logout, and ensure session IDs are randomly generated and invalid after session expiration or logout.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2002-0258 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2002-0258 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data