Clientless SSL VPN products break web browser domain-based security models
Published Dec 4, 2009
6.8
MEDIUMCVSS 2.0
EPSS 4.82%
Description
Multiple clientless SSL VPN products that run in web browsers, including Stonesoft StoneGate; Cisco ASA; SonicWALL E-Class SSL VPN and SonicWALL SSL VPN; SafeNet SecureWire Access Gateway; Juniper Networks Secure Access; Nortel CallPilot; Citrix Access Gateway; and other products, when running in configurations that do not restrict access to the same domain as the VPN, retrieve the content of remote URLs from one domain and rewrite them so they originate from the VPN's domain, which violates the same origin policy and allows remote attackers to conduct cross-site scripting attacks, read cookies that originated from other domains, access the Web VPN session to gain access to internal resources, perform key logging, and conduct other attacks. NOTE: it could be argued that this is a fundamental design problem in any clientless VPN solution, as opposed to a commonly-introduced error that can be fixed in separate implementations. Therefore a single CVE has been assigned for all products that have this design
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Cisco | Adaptive Security Appliance Web SSL VPN | n/a |
| |||
| Palo Alto Networks | PAN OS Web SSL VPN | n/a |
|
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 4.82% (0.04823) | 91.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.13% (0.05134) | 91.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.01% (0.01009) | 75.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.33% (0.01335) | 86.63th | v3 (v2023.03.01) |
| May 3, 2024 | 1.33% (0.01335) | 85.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.33% (0.01335) | 83.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.14% (0.04140) | 86.05th | v2 (v2022.01.01) |
| Jul 18, 2022 | 4.14% (0.04140) | 85.19th | v2 (v2022.01.01) |
| Jul 17, 2022 | 4.36% (0.04358) | 87.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.14% (0.04140) | 84.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.14% (0.04140) | 68.26th | v2 (v2022.01.01) |
References (25)
- http://kb.juniper.net/KB15799
- http://seclists.org/fulldisclosure/2006/Jun/238
- http://seclists.org/fulldisclosure/2006/Jun/269
- http://seclists.org/fulldisclosure/2006/Jun/270
- http://secunia.com/advisories/37696 Vendor Advisory
- http://secunia.com/advisories/37786 Vendor Advisory
- http://secunia.com/advisories/37788 Vendor Advisory
- http://secunia.com/advisories/37789 Vendor Advisory
- http://securitytracker.com/id?1023255
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=984744
- http://www.kb.cert.org/vuls/id/261869 US Government Resource
- http://www.securityfocus.com/archive/1/508164/100/0/threaded
- http://www.securityfocus.com/bid/37152
- http://www.sonicwall.com/us/2123_14882.html Vendor Advisory
- http://www.sonicwall.com/us/2123_14883.html Vendor Advisory
- http://www.stonesoft.com/en/support/security_advisories/2009_03_12.html Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3567 Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3568 Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3569 Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3570 Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3571 Vendor Advisory
- http://www116.nortel.com/pub/repository/CLARIFY/DOCUMENT/2009/50/025367-01.pdf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54523
- https://security.paloaltonetworks.com/PAN-SA-2025-0005
- https://www.kb.cert.org/vuls/id/261869
Change history (0)
No recorded changes yet.