CVE-2016-0800
Description
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Metasploit modules
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.13 |
| debian | bullseye | fixed | 3.13 |
| debian | forky | fixed | 3.13 |
| debian | sid | fixed | 3.13 |
| debian | trixie | fixed | 3.13 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openssl | openssl | 1.0.1 | |
| openssl | openssl | 1.0.1a | |
| openssl | openssl | 1.0.1b | |
| openssl | openssl | 1.0.1c | |
| openssl | openssl | 1.0.1d | |
| openssl | openssl | 1.0.1e | |
| openssl | openssl | 1.0.1f | |
| openssl | openssl | 1.0.1g | |
| openssl | openssl | 1.0.1h | |
| openssl | openssl | 1.0.1i | |
| openssl | openssl | 1.0.1j | |
| openssl | openssl | 1.0.1k | |
| openssl | openssl | 1.0.1l | |
| openssl | openssl | 1.0.1m | |
| openssl | openssl | 1.0.1n | |
| openssl | openssl | 1.0.1o | |
| openssl | openssl | 1.0.1p | |
| openssl | openssl | 1.0.1q | |
| openssl | openssl | 1.0.1r | |
| openssl | openssl | 1.0.2 | |
| openssl | openssl | 1.0.2a | |
| openssl | openssl | 1.0.2b | |
| openssl | openssl | 1.0.2c | |
| openssl | openssl | 1.0.2d | |
| openssl | openssl | 1.0.2e | |
| openssl | openssl | 1.0.2f | |
| pulsesecure | client | - | |
| pulsesecure | steel_belted_radius | - | |
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10722
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html
- http://marc.info/?l=bugtraq&m=145983526810210&w=2
- http://marc.info/?l=bugtraq&m=146108058503441&w=2
- http://marc.info/?l=bugtraq&m=146133665209436&w=2
- http://rhn.redhat.com/errata/RHSA-2016-1519.html
- http://support.citrix.com/article/CTX208403
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160330-01-openssl-en
CWEs
CWE-200 CWE-310
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.