CVE-2021-35235
CVE-2021-35235 is a medium-severity vulnerability in Solarwinds Kiwi Syslog Server with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-11.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-11
- Affected product: Solarwinds Kiwi Syslog Server
- Published:
- Last modified:
Description
The ASP.NET debug feature is enabled by default in Kiwi Syslog Server 9.7.2 and previous versions. ASP.NET allows remote debugging of web applications, if configured to do so. Debug mode causes ASP.NET to compile applications with extra information. The information enables a debugger to closely monitor and control the execution of an application. If an attacker could successfully start a remote debugging session, this is likely to disclose sensitive information about the web application and supporting infrastructure that may be valuable in targeting SWI with malicious intent.
Frequently asked questions
- What is CVE-2021-35235?
- The ASP.NET debug feature is enabled by default in Kiwi Syslog Server 9.7.2 and previous versions. ASP.NET allows remote debugging of web applications, if configured to do so. Debug mode causes ASP.NET to compile applications with extra information. The information enables a debugger to closely monitor and control the execution of an application. If an attacker could successfully start a remote debugging session, this is likely to disclose sensitive information about the web application and supporting infrastructure that may be valuable in targeting SWI with malicious intent.
- How severe is CVE-2021-35235?
- CVE-2021-35235 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2021-35235 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-35235?
- CVE-2021-35235 affects Solarwinds Kiwi Syslog Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-35235?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-35235 published?
- CVE-2021-35235 was published on 2021-10-27 and last updated on 2026-06-17.
References
- https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35235
Affected products (1)
- cpe:2.3:a:solarwinds:kiwi_syslog_server:*:*:*:*:*:*:*:*
More vulnerabilities in Solarwinds Kiwi Syslog Server
- CVE-2021-35231 — Medium (CVSS 6.7): As a result of an unquoted service path vulnerability present in the Kiwi Syslog Server Installation Wizard, a local…
- CVE-2021-35233 — Medium (CVSS 5.3): The HTTP TRACK & TRACE methods were enabled in Kiwi Syslog Server 9.7.1 and earlier. These methods are intended for…
- CVE-2021-35237 — Medium (CVSS 5.0): A missing HTTP header (X-Frame-Options) in Kiwi Syslog Server has left customers vulnerable to click jacking.…
- CVE-2021-35236 — Low (CVSS 3.1): The Secure flag is not set in the SSL Cookie of Kiwi Syslog Server 9.7.2 and previous versions. The Secure attribute…