Detections
Analytics
OpenSSL 0.9.8 < 0.9.8zf / 1.0.0 < 1.0.0r / 1.0.1 < 1.0.1m Multiple Vulnerabilities
medium Nessus Network Monitor Plugin ID 8662
Synopsis
The remote web server is running an outdated instance of OpenSSL and thus may be missing patches for multiple vulnerabilities.Description
OpenSSL before 0.9.8zf, 1.0.0r, or 1.0.1m are unpatched for the following vulnerabilities :- An invalid read flaw exists in the 'ASN1_TYPE_cmp()' function due to improperly performed boolean-type comparisons. A remote attacker can exploit this, via a crafted X.509 certificate to an endpoint that uses the certificate-verification feature, to cause an invalid read operation, resulting in a denial of service. (CVE-2015-0286)
- A flaw exists in the 'ASN1_item_ex_d2i()' function due to a failure to reinitialize 'CHOICE' and 'ADB' data structures when reusing a structure in ASN.1 parsing. This allows a remote attacker to cause an invalid write operation and memory corruption, resulting in a denial of service. (CVE-2015-0287)
- A NULL pointer dereference flaw exists in the PKCS#7 parsing code due to incorrect handling of missing outer 'ContentInfo'. This allows a remote attacker, using an application that processes arbitrary PKCS#7 data and providing malformed data with ASN.1 encoding, to cause a denial of service. (CVE-2015-0289)
- A flaw exists in servers that both support SSLv2 and enable export cipher suites due to improper implementation of SSLv2. A remote attacker can exploit this, via a crafted CLIENT-MASTER-KEY message, to cause a denial of service. (CVE-2015-0293)
- A NULL pointer dereference flaw exists in the 'X509_to_X509_REQ()' function due to improper processing of certificate keys. This allows a remote attacker, via a crafted X.509 certificate, to cause a denial of service. (CVE-2015-0288)
- A use-after-free condition exists in the 'd2i_ECPrivateKey() function due to improper processing of malformed EC private key files during import. A remote attacker can exploit this to dereference or free already freed memory, resulting in a denial of service or other unspecified impact. (CVE-2015-0209)
Solution
OpenSSL versions 0.9.8zf, 1.0.0r, and 1.0.1m are patched against these vulnerabilities. Apply the vendors patch, or update to these versions or later.See Also
https://www.openssl.org/news/vulnerabilities.html
https://www.openssl.org/news/secadv_20150319.txt
https://krebsonsecurity.com/2015/03/openssl-patch-to-plug-severe-security-holes
Plugin Details
Severity: Medium
ID: 8662
Family: Web Servers
Published: 3/27/2015
Updated: 3/6/2019
Nessus ID: 82030, 82031, 82032
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.4
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:openssl:openssl
Patch Publication Date: 3/19/2015
Vulnerability Publication Date: 3/19/2015
Reference Information
CVE: CVE-2015-0209, CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0293