Vulnerability · Published Feb 27, 2020 · Assigned by mitre
CVE-2020-7043
Critical 9.1
In plain English
A critical-severity security flaw in the openfortivpn package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.1Critical
Exploit odds (30 days)2.8%top 13.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | openfortivpn | 1.12.0-1 | DEBIAN-CVE-2020-7043 |
| Debian:13 | openfortivpn | 1.12.0-1 | DEBIAN-CVE-2020-7043 |
| Debian:14 | openfortivpn | 1.12.0-1 | DEBIAN-CVE-2020-7043 |
Affected products (as reported)
References
- https://github.com/adrienverge/openfortivpn/issues/536 x_refsource_MISC
- https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 x_refsource_MISC
- openSUSE-SU-2020:0301 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:0305 vendor-advisory, x_refsource_SUSE
- FEDORA-2020-42eb8821db vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-c96ab3c813 vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-dcdffcc368 vendor-advisory, x_refsource_FEDORA
- https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8 x_refsource_CONFIRM