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Fencer Vulns
medium 6.8

CVE-2009-1629 json

ajaxterm.js in AjaxTerm 0.10 and earlier generates session IDs with predictable random numbers based on certain JavaScript functions, which…

published 2009-05-14 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1624

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

ajaxterm.js in AjaxTerm 0.10 and earlier generates session IDs with predictable random numbers based on certain JavaScript functions, which makes it easier for remote attackers to (1) hijack a session or (2) cause a denial of service (session ID exhaustion) via a brute-force attack.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-1629 updated

AjaxTerm: session id collision

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.33% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2009/05/11/1 referenced PoC, tagged "exploit" by a source, unverified
  • ocert.org http://www.ocert.org/advisories/ocert-2009-004.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.