cbcvebase.
CVE-2013-3128
published 2013-10-09

CVE-2013-3128: The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1…

PriorityP180critical9.3CVSS 2.0
AVNACMAuNCCICAC
ITWVulnCheck KEV
Exploited in the wild
EPSS
50.37%
98.8th percentile
The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT, and .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, and 4.5, allow remote attackers to execute arbitrary code via a crafted OpenType font (OTF) file, aka "OpenType Font Parsing Vulnerability."

Affected

6 ranges
VendorProductVersion rangeFixed in
microsoftnet_framework
microsoftnet_framework
microsoftnet_framework
microsoftnet_framework
microsoftnet_framework
microsoftwindows_server_2008

Detection & IOCsextracted from sources · hover to see the quote

commandrundll32.exe Add.dll AddByGod [password]
  • The exploit loader allocates memory with PAGE_EXECUTE_READWRITE permissions; this memory protection flag combined with the Add.dll/AddByGod pattern can be used as a behavioral detection signal.
  • The embedded exploit binary (inner payload) has a compilation timestamp of October 2014; forensic triage of loader samples should check for this embedded PE timestamp to confirm Jian/EpMe lineage.
  • All malware samples using this packer variant are exclusively attributed to Chinese-affiliated attack groups; any sample matching the Add.dll/AddByGod packer pattern should be triaged under APT31 (Zirconium) attribution.
  • The exploit targets a crafted OpenType Font (OTF) file to achieve remote code execution via kernel-mode driver parsing; hunt for anomalous OTF file delivery (email attachments, web downloads) on affected Windows/Server/.NET Framework versions.
  • ·The exploit uses a decryption password passed as a command-line argument; the specific password differs between samples (CVE-2017-0005 vs CVE-2019-0803) and is not disclosed in the source, limiting static signature coverage.
  • ·When ignoring random page allocation, both the Microsoft-documented sample and the researchers' sample use the same lower 3 nibbles of addresses; ASLR bypass behavior means address-based signatures must account for the randomized upper bits.

CVSS provenance

nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vulncheck9.3CRITICAL
CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.